看不见的手之所以常常看不见，是因为它常常不存在。

我只知道，我画画是因为我需要，我画任何经过我脑海的东西，不考虑其他。

Quality is never an accident; it's the result of intelligent effort and relentless focus.

The true artist is not proud; he knows that art is greater than himself.

科学不仅仅是寻找答案，更是提出正确的问题。