最大的风险是不冒任何风险。

粒子的概念只是近似的，并且只有在动量较小的极限下才有意义。

The highest manifestation of life consists in this: that a being governs its own actions. A thing which is always subject to the direction of another is somewhat of a dead thing.

未来是一个黑暗的虚空，我们都在盲目地朝它跌跌撞撞地前进。