The pain of discipline is better than the pain of regret.
自律的痛苦比后悔的痛苦要好。
Life is like music。It must be composed by ear，feeling and instinct，not by rule.
The greatest hazard of all, losing one’s self, can occur very quietly in the world, as if it were nothing at all.
"We are entering an era where quantum phenomena will become engineering tools."