I don’t believe in inspiration. I believe in hard work.
"I don't believe in happy endings, but I do believe in happy travels, because ultimately, you die at a very young age, or you live long enough to watch your friends die."
生活就是成长和改变。当你停止成长,你就停止了生活。
The value of a mental process lies in its utility for the organism's adjustment to life.
在数学中,最简单的问题往往能引出最深刻的见解。