Mathematics is the art of turning complexity into clarity.
每个细节都很重要,因为每个细节都是整体的一部分。
你围绕你所恐惧的事物建立生活,然后你的一生都在恐惧中度过。
"The best stories are the ones that stay with you forever."
The secret of being miserable is to have leisure to bother about whether you are happy or not.