Your time is limited, don't waste it living someone else's life.

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.

Sustainable forestry is not a cost - it's the smartest long-term business strategy we have.

写作是一种生活方式，而不仅仅是一种职业。

可持续性不是一种选择，而是生存的必要条件。

All interest in disease and death is only another expression of interest in life.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."