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The deepest theorems often arise from the simplest observations.
You get what you give. What you put into things is what you get out of them.
The Langlands program is a vision of how mathematics could be unified.
The desire for recognition, the thymotic part of the soul, is what drives human history.
一对爱人婚前彼此非常了解或性格特别相似,这并不能说明他们婚后会幸福。他们往往是弄到后来距离越来越远,彼此烦恼。你既然得和这个人过一辈子,对他的缺点知道得越少越好。
Positive psychology is as concerned with strength as with weakness, as interested in building the best things in life as in repairing the worst.