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English Proverbs

A Bird in the Hand Is Worth Two in the Bush

A certain small gain is worth more than the possibility of a larger one — the founding English proverb of risk aversion.

Why it matters Quoted to defend taking the offer on the table over gambling on something speculative — accepting the buyout, holding the stock you own, not quitting the stable job for a startup dream. The exact counterargument to [[fortune-favors-the-bold]]; both get deployed depending on which decision the speaker already wants to defend.

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Greek Mythology

Achilles' Heel

A single critical weakness in an otherwise strong person, thing, or system.

Why it matters Any singular vulnerability that undoes an otherwise strong thing — a star player's bad knee, a company's reliance on one customer, a politician's one scandal.

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Science & Thought Experiments

Albert Einstein

The German-born physicist whose relativity theories rewrote our picture of space and time — and whose hair became the universal logo for 'genius.'

Why it matters His name is the universal benchmark for intelligence — 'no Einstein,' 'the Einstein of [field],' 'you don't have to be Einstein to see this.' E=mc² is the most-quoted equation that almost nobody can explain. The hair is shorthand for any disheveled genius archetype.

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