"Beauty is a form of genius—is higher, indeed, than genius, as it needs no explanation."

Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.

做好研究的秘诀是始终保持轻微的工作不足状态。因为无法浪费几个小时，你可能会浪费数年时间。

A book can be a friend, a teacher, and a doorway to another world.