Earth provides enough to satisfy every man's need, but not any man's greed.

Corruption ought not to be an inevitable product of democracy.

Even as a tree has a single trunk but many branches and leaves, there is one religion - human religion - but any number of faiths.

As human beings, our greatness lies not so much in being able to remake the world - that is the myth of the 'atomic age' - as in being able to remake ourselves.

The earth only has so much bounty to offer and inventing ever larger and more notional prices for that bounty does not change its real value.

If we're ever going to get the world back on a natural footing, back in tune with natural rhythyms, if we're going to nurture the Earth and protect it and have…

We must not forget that mankind depends largely on animals, therefore we have a responsibilty for their welfare. If we destroy them - we destroy ourselves.