最强大的人永远不足以始终成为主宰，除非他将力量转化为权利，将服从转化为义务。
The strongest is never strong enough to be always the master unless he transforms strength into right and obedience into duty.
I don't regret the things I've done, I regret the things I didn't do when I had the chance.
The fabric of reality is woven with the threads of mathematics and observation.