Freedom is not the power to do what we want， but the right to do what we ought.
自由不是做我们想做的事情的权力，而是做我们应该做的事情的权利。
"In the silence of the night, words find their way to the soul."
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
Policy should be based on evidence, not ideology.
In the realm of computational complexity, every problem is a universe waiting to be explored.