You can't be that kid standing at the top of the waterslide, overthinking it. You have to go down the chute.

理论计算机科学中的挑战不仅仅是解决问题，而是理解问题解决的本质。

The world is full of people who have never, since childhood, met an open doorway with an open mind.

The trick is to pay attention to what's happening around you and to keep writing.