数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

No arts; no letters; no society; and which is worst of all, continual fear and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.

An individual has not started living until he can rise above the narrow confines of his individualistic concerns to the broader concerns of all humanity.

水产养殖实践的透明度建立了与消费者和利益相关者的信任。

You see, in life, lots of people know what to do, but few people actually do what they know. Knowing is not enough! You must take action.