Science should serve humanity, not just curiosity.

The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.

Money talks, but all mine ever says is goodbye.

可持续林业不仅仅是砍伐树木；它关乎我们星球的未来。

Stop being afraid of what could go wrong and start being excited about what could go right.

真理很纯粹，可决不简单。