Psychology must be a guide to practical living.

可持续捕捞不是一种选择，而是所有依赖海洋者的义务。

The environment will appear different to different observers depending on what they are prepared to see.

"Reading is an act of freedom."

创新不是重新发明轮子，而是让轮子更好、更强、更高效。

操场是民主的实验室。