To wear your heart on your sleeve isn't a very good plan; you should wear it inside, where it functions best.
Inflation is a very bold idea, but it seems to be the only way to explain the observed features of the universe.
I don't let the world change my smile.
To be human is to be vulnerable.
The next industrial revolution will be defined by how we manage our resources.
一棵树的真正价值是用几十年衡量的,而不是美元。