The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

The Langlands program is not a finished edifice but a living, evolving framework.

The probability of a response is determined by its reinforcement history.

人类以可预测的方式非理性。