Solitude is indeed dangerous for a working intelligence.We need to have around us people who think and speak.When we are alone for a long time we people the void with phantoms.

Try to learn something about everything and everything about something.  

You have to be willing to fail in order to succeed.

对自己抱有兴趣的人使我们感兴趣。

你必须有深渊的眼睛，才能凝视深渊。