Law 20 names a tactic, gives it three worked examples across three completely unrelated domains, and ends on a line from Stendhal.
The rule: "Put yourself in the middle between competing powers. Lure one side with the promise of your help; the other side, always wanting to outdo its enemy, will pursue you as well."1
Then the observation that makes it more than a manoeuvre: "Those who use this strategy often notice a strange phenomenon: People who rush to the support of others tend to gain little respect in the process, for their help is so easily obtained, while those who stand back find themselves besieged with supplicants. Their aloofness is powerful, and everyone wants them on their side."2
And the seduction version, which gives the tactic its name: "When you want to seduce a woman, Stendhal advises, court her sister first."3
The examples are unusually well chosen, and the fact that they span three unrelated fields is the argument.
Art. "When Picasso, after early years of poverty, had become the most successful artist in the world, he did not commit himself to this dealer or that dealer, although they now besieged him from all sides with attractive offers and grand promises. Instead, he appeared to have no interest in their services; this technique drove them wild, and as they fought over him his prices only rose."4
Statecraft. "When Henry Kissinger, as U.S. secretary of state, wanted to reach detente with the Soviet Union, he made no concessions or conciliatory gestures, but courted China instead. This infuriated and also scared the Soviets—they were already politically isolated and feared further isolation if the United States and China came together. Kissinger's move pushed them to the negotiating table."5
Seduction. Stendhal's sister.
Same structure in each: the target is moved not by anything done to them, but by something done in front of them, to a rival.
Work out why the indirect route outperforms asking, because the reason is not subtlety.
A direct approach supplies information about your need. Kissinger making concessions to the Soviets tells Moscow that Washington wants a deal, which is precisely the fact that raises the price. Picasso negotiating with a dealer reveals he wants to sell.
The indirect route supplies the opposite information. Courting the rival demonstrates you have an alternative — and it demonstrates it by doing rather than by claiming, which is why it cannot be discounted as a bluff.
Greene's Soviet example names it exactly. The Soviets were not merely worried about missing a deal; they "feared further isolation if the United States and China came together." The rival's gain is a separate loss from your absence, and courting the rival inflicts both at once.
So the move is doing three things simultaneously: concealing your need, evidencing an alternative, and threatening the target with the rival's improvement. A direct approach does none of them and actively reverses the first.
The three examples share a condition Greene never states, and it decides whether the tactic is usable.
The rival must be genuinely acceptable to you.
Picasso really could have signed with another dealer. Kissinger really could pursue rapprochement with China — and did, and it stood on its own terms. Stendhal's sister is a real person who could really be courted.
Where the alternative is not genuinely acceptable, the manoeuvre becomes a bluff, and bluffs in this specific structure are unusually expensive to be caught in. You have publicly pursued something you did not want, which tells the target both that you were manipulating them and that your alternative was fake — destroying the one asset the tactic exists to demonstrate.
Which yields a clean test: if the rival accepted, would you be content? Kissinger would have been content with a China rapprochement and nothing from Moscow. If the answer is no, you are not running this tactic; you are performing it, and the performance is discoverable.
The China opening proves the point hardest, because it was not a feint. It was a genuine and durable strategic realignment that happened to have the side effect on Moscow. The strongest version of the tactic is one where the alternative is the real objective, and the target's movement is a bonus.
The observation embedded in the middle of this passage is broader than the tactic and deserves separating, because it is the chapter's most portable claim:
"People who rush to the support of others tend to gain little respect in the process, for their help is so easily obtained."2
That is a claim about pricing rather than about gratitude. It does not say the help is unappreciated — it says the helper is discounted, and the mechanism is that easily-obtained things are priced as easily-obtained.
And it is genuinely uncomfortable, because it is in direct tension with how cooperation works. A person who helps readily is, in most ordinary respects, a better colleague and a better friend than one who does not.
Greene's claim is not that they are worse. It is that they are cheaper, and the corpus's success criterion — standing, leverage, being pursued — makes cheapness the only variable it can see. Worth flagging plainly: this is a real observation about how status is priced, and it is not an argument that the readily-helpful person is doing anything wrong.
You want something from someone and they are not moving.
The instinct is a better approach: a clearer case, a warmer message, a stronger offer. Each of those tells them more precisely how much you want it.
The tactic here says stop approaching and go and do something real with an alternative — and the load-bearing word is real.
Find the genuine second option. The other supplier, the other collaborator, the other route to the outcome. Then actually pursue it, on its own merits, in a way you would be content to have succeed. Do not announce it and do not hint. The target either sees it or does not, and if they do not, you have still advanced something you wanted.
That is the whole discipline, and it is what separates this from a manipulation. If the alternative is fake, you are performing an option you do not have, and being caught destroys the exact asset you were trying to demonstrate — while telling the target you were working them.
Then run the honest self-check the passage invites, because it cuts both ways. Are you the person who rushes to help? If your assistance is available instantly and always, Greene's claim is that it is being priced accordingly — not resented, just discounted. That is worth knowing as information rather than as instruction: the fix is not to become less helpful, it is to notice that generosity and standing are separate currencies and that the corpus only counts one of them.
The strongest feature is cross-domain replication: the same structure in art dealing, superpower diplomacy and seduction, from three unconnected sources. A mechanism that appears in three unrelated fields is better evidenced than one demonstrated three times in the same one.
Tension: the tactic's precondition is unstated and decides everything. The rival must be genuinely acceptable. Greene's three examples all satisfy it and he never names it, so the chapter reads as though the manoeuvre were available whenever you want something.
Tension: the China example is not an instance of the tactic as described. Greene presents it as a move made in order to pressure Moscow. The opening to China was a substantial independent policy with its own rationale — the strongest form of the tactic is where the alternative is the real objective, and describing it as a lever inverts what happened.
Tension: the rushing-to-help claim is a status observation presented as advice. It is probably true about pricing and says nothing about whether the readily-helpful person is better off.
🚩 SINGLE SOURCE · 🚩 SECONDARY WITHOUT PRIMARY — no source for the Picasso dealer material, none for the Stendhal attribution (no work named), and the Kissinger–China–détente causal claim is a large historiographical position compressed into two sentences with nothing behind it. [POPULAR SOURCE] · [CONTESTED] on the China-as-lever reading.
Open questions. Does the tactic work when the target knows the tactic? The mechanism runs on demonstrated alternatives, which are not obviously defused by being recognised — a real option is a real option — so this may be one of the few techniques in the corpus that survives being named. And: what is the base rate of the rival simply accepting? Every example given is one where the target moved, and a version where China had been the only outcome is invisible in the chapter.
Within Law 20 this is the operational core, and the three long cases are all instances of it. Elizabeth ran it across the courts of Europe — Spain, Sweden, Austria and two French dukes, each visibly aware of the others. Alcibiades ran it across three hostile powers. Kissinger ran it across two campaigns in 1968 and, per this passage, across Beijing and Moscow a few years later.
Kissinger's seventh appearance in this build, and the method is unchanged. Laws 2, 3, 4, 7, 9, 20 Pt I, and here. Every instance is a refusal to occupy a position that can be taken from you, and Greene distributes seven instances across seven laws as seven principles — the same defect logged at Talleyrand (Laws 8, 12, 14, 18).
Against Law 16's Duveen basement, the convergence is exact and worth stating. Duveen bought competing collections into storage so that the alternatives to his paintings disappeared; this tactic makes the alternatives to the target visible. Same variable — the counterparty's perceived options — operated in opposite directions, ten laws apart. The corpus's real subject in both places is substitutability, and it never names it.
Business — The Free-Agency Leverage Moment
That page identifies the window where negotiating position peaks: commitment genuinely open, and all parties aware of it.
Courting the sister is the manufacturing procedure for that window, and the pair completes each other.
The business page describes the state and largely treats its arrival as circumstantial — a contract ends, an offer arrives. Greene's tactic says the state can be produced deliberately, by going and generating a real alternative rather than waiting for one.
What the pair produces: leverage is not a thing you have, it is a thing you build, and the build is done outside the negotiation entirely. Nothing said across the table creates an alternative; only pursuing one does. Which explains why negotiation advice so consistently underperforms — it operates in the room, and the variable that decides the outcome was set before anyone sat down.
And it sharpens the free-agency page's timing claim. The window does not open when your commitment expires; it opens when a second real option exists, and those are different dates. An operator who waits for the first has ceded the interval; one who manufactures the second controls when it starts.
Psychology — Covetousness and Desire
That page's territory is desire generated by another's possession — wanting because someone else has, rather than because of anything in the object.
The Stendhal line is that mechanism weaponised, and the pair produces the tactic's real limit.
Courting the sister works because desire is relational — it is generated by observing another's interest rather than by evaluating the object. Same engine as Law 20's desire is like a virus.
But the pair identifies the constraint the chapter never states: the two parties must be comparable enough that the target reads the rival's gain as their loss. Kissinger's Soviets feared "further isolation" — a specifically relational harm, available only because China occupied the same category. Court someone from an entirely different category and the target registers nothing, because there is no comparison to lose.
Which means the tactic is not pursue an alternative. It is pursue the alternative your target measures themselves against — a much narrower instruction, and one that explains the failures the chapter has no examples of. The rival has to be a rival in the target's own accounting, and that is a fact about their psychology rather than about market structure.
Sharpest implication. A direct approach supplies the one fact that raises the price — how much you want it. Courting the rival supplies the opposite, and does it by doing rather than by claiming, which is why it cannot be discounted as a bluff. The entire advantage rests on the alternative being real, and the moment it is not, the manoeuvre destroys the asset it exists to demonstrate.
Generative questions.