人类的思想是如此复杂，事物之间是如此纠缠，以至于要解释一片草叶，就必须绘制宇宙的图表。

The strictness of Russian laws is softened by the non-obligatory nature of their execution.

A proof is a device for convincing someone else that a mathematical statement is true.

预测未来的最好方式就是创造未来。