辩论的时间已经结束；行动的时间就是现在。

建筑师必须是一位艺术家。

The story of human origins is still being written.

The concept of nondeterminism in computation is one of the most important ideas in computer science.

未来就是永恒再加一天。

If people did not sometimes do silly things, nothing intelligent would ever get done.