Injustice anywhere is a threat to justice everywhere.

I don't care about being remembered as the most famous person in the world. I want to be remembered as the most fearless.

The true value of a forest is measured not just in board feet of timber, but in the lives it sustains and the ecosystems it supports.

The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.

最伟大的艺术是使无形可见。