追求数学真理就是追求美、优雅和简洁。

让它简单。让它难忘。让它吸引人。让它读起来有趣。

未来は、過去の積み重ねでできている。

Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.

可持续发展不是选择，而是对后代的责任。