We don't inherit the ocean from our ancestors; we borrow it from our children.
过去总是在变化。它不是固定的。过去并不稳定。
数学的本质在于它的自由。
译文:不肯向优秀的人学习,这便是失败的原因了。
"A great book is not one that is read, but one that reads you, revealing the depths of your own soul."