质量不是保证；它是一种证明。
Quality is not a assurance; it is a proof.
做一个犹太人就是做一个见证者。
The real discovery is the one that makes me capable of stopping doing philosophy when I want to.
对抗各种错误的最强大武器是理性。
Never stop questioning how things can be done better—complacency is the enemy of progress.
我想跑一场好比赛，激励很多人。
记住，希望是好的。
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.