“用进废退”无论在哪里都适用的道理

Experience is simply the name we give our mistakes.

每个人都幻想将来会更好，而不是更糟。

Whatever is well conceived is clearly said, And the words to say it flow with ease.

我不是天才，我只是比别人更努力。

对这个世界有所助益是获得快乐的唯一途径。

"In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."

数学证明的美在于它的简洁性和必然性。