除非定理是美丽的，否则它们毫无价值。

Science is a wonderful thing if one does not have to earn one's living at it.

The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.

In a state, the liberty of one citizen is a menace to the liberty of another.

Success is a journey, not a destination.

我认为最好的作品来自于真实的地方。

心理学理论的检验标准是其对生活的适用性。