信件是传记作者的金矿；它们揭示了官方记录所隐藏的东西。

The best science is done with both the head and the heart.

The Internet is the most important single development in the history of human communication since the invention of the printing press.

你不能因为某件事困难就放弃。

群体在智力上总是低于孤立的个人。