The essence of mathematics lies in its freedom.
I went to the woods because I wanted to live deliberately. I wanted to live deep and suck out all the marrow of life. To put to rout all that was not life. And not, when I had come to die, discover that I had not lived.
We are all born with a certain degree of talent. What we do with it is up to us.
The best products come from a deep understanding of the problem, not just a desire to make something new.
如果你一心为了讨喜,那你就要准备随时随地的屈就,并且你会一事无成。
生活世界是我们日常生活中视为理所当然的隐含知识和无问题信念的背景。