The only person who cannot be helped is that person who blames others.

The best way to improve a program is to rewrite it.

最优雅的数学证明是那些以简单揭示真理的证明。

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

Your attitude determines your altitude.

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.