法律是在国家权威强制下实现的社会生活条件的总和。

学习数学的唯一方法就是做数学。

真相常常比小说更离奇，但小说是我们找到真相的地方。

Laws that have not their basis in nature are useless.

Perception is an active process where the brain constructs meaning from sensory input.

Sometimes the hardest thing in life is to know which bridge to cross and which to burn.

如果农民不知道如何有效使用，最先进的技术也毫无价值。