At 20 everyone has the face that God gave them, at 40 the face that life gave them, and at 60 the face they earned.

It seemed incredible to me, that physical courage should be so commonplace and revered, while moral courage . . . is so rare and despised.

There slowly grew up in me an unshakable conviction that we have no right to inflict suffering and death on another living creature, unless there is some unavoidable necessity for it.

It doesn't matter if an animal can reason. It matters only that it is capable of suffering and that is why I consider it my neighbor.

The highest proof of the spirit is love. Love the eternal thing which can already on earth possess as it really is.

Reverence for life is the highest court of appeal.

Ethics has not only to do with mankind but with the animal creation as well. This is witnessed in the purpose of St. Francis of Assisi. Thus we shall arrive that ethics is reverence for all life. This is the ethic of love widened universally. It is the ethic of Jesus now recognized as a necessity of thought...Only a universal ethic which embraces every living creature can put us in touch with the universe and the will which is there manifest.