使我们成为人类的东西也是使我们脆弱的东西。
"The most radical thing you can do is to stay home and love your family."
The safest course is to do nothing against one's conscience.With this secret， we can enjoy life and have no fear from death.
心的记忆会消除坏的，放大好的。
In the new century, I think we will all be insane.
The task of the teacher is to lead the student from the known to the unknown.