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The world is full of hidden connections.
教育的目的不是使年轻人在任何一门科学上都变得完美,而是要打开和培养他们的思维,使他们在将来学习任何科学时都能胜任。
In mathematics, the simplest questions often lead to the most profound discoveries.
To write is to bear witness to the world and to oneself.