过去总是紧张的，未来是完美的。

物理学家必须对自然法则的简洁与美怀有一种信念。

The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.

天地不可一日无太和元气，人心不可一日无欢喜情绪。