科学是一股向善的力量，但前提是我们明智地使用它。

We cannot be sure of having something to live for unless we are willing to die for it.

"Every failure is a stepping stone to success, provided we learn from it."

The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.

真正的领导力激励他人实现超出想象的成就。