The true sign of intelligence is not knowledge but imagination.
智慧的真正标志不是知识，而是想象力。
"Biography is the most intimate form of history."
你不尝试就100%错过了机会。
人生最重要的事是停止说“我希望”，开始说“我会”。
The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.