In the world of physics, we often find that the simplest questions are the hardest to answer.

用右手画圆形，左手画方形，不能同时画成

"We are all exiles from our childhoods."

Freedom can only be given to one who loves it， and the rest is for slaves.

I’ve found time can heal most anything.

The best architecture is democratic.

To any artist, worthy of the name, all in nature is beautiful, because his eyes, fearlessly accepting all exterior truth, read there, as in an open book, all the inner truth.