数学的本质在于它的自由。
The essence of mathematics lies in its freedom.
I think that we communicate only too well, in our silence, in what is unsaid, and that what takes place is a continual evasion, desperate rearguard attempts to keep ourselves to ourselves.
释义：善良如同四季常青的松树，邪恶如同娇艳的花朵。从表面上看，花朵似乎比松树更美丽，但当遇到风霜时，松树依然挺立，而花朵却凋零了。
在爱情中我们都是傻瓜。
数学的美在于它让我们看到世界上不立即显现的模式和结构。
今天种下的每一棵树都是留给明天的遗产。