The key to managing complexity is to focus on the interfaces between components, not their internal details.

The dead are not powerless. Dead, did I say? There is no death, only a change of worlds.

Perception is the result of the activity of the five senses; through sensation, we come to know the world.

Don’t be afraid to fail. Be afraid not to try.

把灯笼背在背上的人，有黑影遮住前路。

在人们心中，损失比收益显得更大。