Don't be defined by what you didn't know or didn't do.

We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.

Security is sleeping in the back seat of the car...When you're a little kid, and you've ben somewhere with your Mom and Dad, and it's night, and you're riding home in the car, you can sleep in the back seat...You don't have to worry about anything...Your Mom and Dad are in the front seat, and they do all the worrying...But it doesn't last! Suddenly, you're grown up, and it can never be that way again!

爱情并不遵从我们的想象。爱情的神秘之处就在于它的纯洁与纯粹。

我们不仅仅是在卖商品，我们是在创造一种新的购物体验。

But man is not made for defeat. A man can be destroyed but not defeated.