Understanding emerges from the interaction of simple processing units working in parallel.

You have to be able to laugh at yourself, or you'll never make it in this business.

I believe in the power of literature to change the way we see the world.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

小于给定数的素数个数是该数的一个函数。