The poet's heart must be open to all the winds of heaven.

真正的挑战不仅是要养活世界，而且要以可持续的方式滋养它。#

我们生产的每一桶石油都必须是尽可能负责任地生产出来的。

谁也不能剥夺我们对真理的追求。

As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.

One way of looking at speech is to say that it is a constant stratagem to cover nakedness.

I think of other ages that floated upon the stream of life and love and death and are forgotten,and I feel the freedom of passing away.