I'm not a angel, I'm a demon.

解读：不劳而获、投机取巧所得快乐转瞬即逝，唯有持续付出汗水与心血，攻克难题、实现目标，由此产生的快乐才扎实、长久，激励踏实奋斗。

You can’t connect the dots looking forward; you can only connect them looking backwards.

Writing is a struggle against silence.

Your voice can change the world.

The natural effort of every individual to better his own condition， when suffered to exert itself with freedom and security， is so powerful a principle that it is alone， and without any assistance， not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.

I don't let setbacks stop me. They make me stronger.

对于好的建议，你唯一能做的就是传递它。它对自己从来没有任何用处。

We're not trying to preach, we're just trying to teach.