The true measure of a man is how he treats someone who can do him absolutely no good.

Fishery management cannot rely solely on policies; it requires industry self-discipline and social supervision.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

The paper industry has a unique opportunity to lead the way in environmental stewardship.

译文：郁孤台下这赣江的流水，水中不知包含了多少乱世中行人的眼泪。我向西北眺望故都长安，可惜无数青山层层叠叠，遮住了我的视线。

要理解知觉，研究其在适应中的作用。