The key to survival is preparation. Know your environment and be ready for anything.

你付出的能量就是你得到的能量。

Stories are the way we make sense of the world, but they are also the way we deceive ourselves.

到处都有痛苦。

化合价的概念是理解化学键的关键。

言语有治愈的力量，但它们也能深深地伤害。