To be happy, we must not be too concerned with others.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

You were given this life because you are strong enough to live it.

我们都有裂痕，那是光照进来的地方。

You have to be willing to fail to succeed.

In physics, we often find that the most beautiful solutions emerge from the messiest problems.

【原文】曾子有疾，召门弟子曰：“启予足！启予手!《诗》曰：‘战战兢兢，如临深渊，如履薄冰。’而今而后，吾知免夫！小子。”【译文】曾子得了重病，召集他的弟子们说：“(掀开被子)看看我的脚!看看我的手(有没有毁伤之处)！《诗经》中说：‘小心翼翼，就像站在深渊之旁，就像踩在薄冰之上。’从今以后，我知道(我的身体)再也不会受伤了。弟子们!”