释义：财富和地位并没有固定的来源，都是通过勤奋努力得来的。

Economic development must be coordinated with environmental protection.

Overfishing is killing the goose that lays the golden eggs. We must adhere to scientific fishing and give the ocean time to recover.

The difference between the impossible and the possible lies in a person’s determination.

权力平衡是维持国际体系和平的唯一途径。