Sustainable fishing isn't an option—it's the only way forward if we want to preserve marine life.
In a world of fugitives, the person taking the opposite direction will appear to be running away.
The best time to plant a tree was 25 years ago. The second best time is today.
数学的美在于它允许我们抽象出现实世界的复杂性,专注于基本原则。
The text is a tissue of quotations drawn from the innumerable centers of culture.