Knowing is not enough, we must apply. Willing is not enough, we must do.

"There is a world of difference between the love we feel for a wild creature and the love we feel for a human being."

真正的冲突在于个人的权利和社会的权利之间。

自由就是没有选择。

In scientific work, those who refuse to go beyond fact rarely get as far as fact.

The greatest glory in living lies not in never falling, but in rising every time we fall.