The value or worth of a man is, as of all other things, his price; that is to say, so much as would be given for the use of his power.
只有那些渴望自由的人才能拥有自由。
存在的每一刻,人要么成长更多,要么退缩更少。
In the realm of mathematics, every problem is an opportunity to discover something new and profound.