A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do.

"The joy of discovery is certainly the liveliest that the mind of man can ever feel."

I'm not afraid to fail. I'm afraid of not trying.

世界是残酷的，但它也是美丽的。

历史是在记忆的不完美与文献的不足相遇时产生的确定性。