The human mind is so complex and things are so tangled up with each other that, to explain a blade of grass, one would have to make a diagram of the universe.

Sustainability is not just a goal, it's a responsibility.

心灵是一个不断适应环境的动态系统。

The true cost of fish should include the cost of keeping our oceans healthy.

La mélancolie, c'est le bonheur d'être triste.

The greatest enemy of a good plan is the dream of a perfect plan.