快乐是一种心态，它取决于你看待事物的方式。
Happiness is a state of mind. It's just according to the way you look at things.
The highest knowledge is the knowledge of the self.
Sustainability isn't a trend; it's the future of food production.
If oxen and horses and lions had hands and could paint with their hands and produce works of art as men do, horses would paint the forms of the gods like horses, and oxen like oxen, and they would make their bodies in accordance with the form that each species itself possesses.