The greatest threat to our forests isn't logging—it's indifference.

The problem of modern society is it turns the whole world into a school. Everybody's wearing jeans, everybody's the same. And yet, they're not. So there's a spirit of equality combined with deep inequality, which can make for a very stressful situation.

我对医学着迷，因为它是生死之间的界线。

真正的进步既要衡量经济增长，也要衡量生态系统的健康。

Never let success get to your head or failure to your heart.

可持续性不是一种趋势，而是我们对后代的责任。

沙漠教会人耐心、沉默和小事物的价值。