不要为未来担忧，不要为过去哭泣。

"There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best."

"When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become."

The best architecture comes from a synthesis of all the elements that separately comprise a building.

数学是理性的音乐。