The method of introspection must be rigorously controlled.

每个伟大的管弦乐队都是社会的镜子，既反映其美德也反映其缺陷。

The moment you doubt whether you can fly, you cease for ever to be able to do it.

真正的学者不在于知识渊博，而在于热爱真理并真诚追求。

语言是心灵的声音。