The imagination imitates. It is the critical spirit that creates.
"The essence of mathematics lies in its freedom."
同有修养的人交谈,胜过闷头读十年书。
过去的知识留在我们身边,激励我们追求新的更好的事物。
"It is easy to forget how full the world is of people, full to bursting, and each of them imaginable and consistently misimagined."