The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.

最好的艺术作品是提出问题而不是提供答案。

Books are the mirrors of the soul.

Money is like manure， its only good if you spread it around.

"Children deserve books that challenge them, not just entertain."

任何艺术的最大问题都是创造一种存在感。