The history of mathematics is a history of human curiosity and ingenuity.
数学的历史是人类好奇心和创造力的历史。
The most important thing is to be happy with what you're doing.
The moment you stop trying is the moment you start failing.
We must not always talk in the market-place of what happens to us in the forest.
Try not to become a man of success but rather try to become a man of value.