Ignorance more frequently begets confidence than does knowledge.

Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.

承认规则是法律体系中的终极规则，它确定了有效法律的标准。

畜牧业的创新不仅仅是技术问题；它关乎理解动物和农民的需求。