“Ambition must be made to counteract ambition.”Publius (Hamilton, Madison, Jay) · Eseurile federaliste · 1788 · Federalist nr. 51
Selfish interests can neutralize each other within a clever institutional architecture.
The Federalist authors propose an ingenious mechanism: instead of hoping people will be virtuous, you build institutions where one official's ambition is checked by another's. Thus, personal interest becomes a guardian of liberty. For example, the Senate and the House of Representatives have different interests but must cooperate to legislate.
Why it matters This idea underlies modern constitutional design and teaches us that good systems rely not on people's goodness but on intelligent architecture of power.