The only way to improve is to challenge yourself against the best.

我想把美国从所有阻碍人们前进的事物中解放出来。

The first step is to establish that something is possible; then probability will occur.

言语有治愈和毁灭的力量。

最好的书……是那些告诉你你已经知道的事情的书。

定理是数学的里程碑。

建筑师最强大的工具是橡皮擦。