Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.
关于自由市场最重要的一个核心事实是,除非双方都受益,否则交易不会发生。
The mind is the organ of possibility in a world of challenge.
每一个故事都是一个以不同方式看世界的机会。
I'm always searching for new sounds.