Until we have courage to recognize cruelty for what it is - whether its victim is human or animal - we cannot expect things to be much better in the world. There can be no double standard. We cannot have peace among men whose hearts find delight in killing any living creature. By every act that glorifies or even tolerates such moronic delight in killing, we set back the progress of humanity.

There is something infinitely healing in the repeated refrains of nature.

Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts.

But man is a part of nature, and his war against nature is inevitably a war against himself.

When we go down to the low-tide line, we enter a world that is as old as the earth itself - the primeval meeting place of the elements of earth and water, a place of compromise and conflit and eternal change.

One way to open your eyes is to ask yourself, "What if I had never seen this before? What if I knew i would never see it again?

For the sense of smell, almost more than any other, has the power to recall memories and it's a pity we use it so little.