The best way to know what's in the soup, is to boil yourself in it.

It showed a kind of obscenity you see only in nature, an obscenity so extreme that it dissolves imperceptibly into beauty.

If equations are trains threading the landscape of numbers, then no train stops at pi.

When people asked him why he didn't work with those viruses, he replied, I don't particularly feel like dying.

During climbs into taller trees, I was occasionally able to look down on the backs of birds, which shine with reflected sunlight as they move through the green depths of the canopy, like schools of fish.

You can’t fight off Ebola the way you fight off a cold. Ebola does in ten days what it takes AIDS ten years to accomplish.

What can the redwoods tell us about ourselves? Well, I think they can tell us something about human time. The flickering, transitory quality of human time and the brevity of human life - the necessity to love.