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.

I do not know what your destiny may be, but I do know this, that not one of you will find the happiness that each of you is seeking until you have first sought and found a way in which to unselfishly serve others.

Rational thinking which is free from assumptions ends therefore in mysticism. To relate oneself in the spirit of reverence for life to the multiform manifestations of the will-to-live which together constitute the world is ethical mysticism. All profound world-view is mysticism, the essence of which is just this: that out of my unsophisticated and naïve existence in the world there comes, as a result of thought about self and the world, spiritual self-devotion to the mysterious infinite Will which is continuously manifested in the universe.

Ethics cannot be based upon our obligations toward people, but they are complete and natural only when we feel this Reverence for Life and the desire to have compassion for and to help all creatures insofar as it is in our power. I think that this ethic will become more and more recognized because of its great naturalness and because it is the foundation of a true humanism toward which we must strive if our culture is to become truly ethical.

Affirmation of the world, which means affirmation of the will-to-live that manifests itself around me, is only possible if I devote myself to other life.

Seek always to do some good, somewhere. Every man has to seek in his own way to realize his true worth. You must give some time to your fellow man. For remember, you don't live in a world all your own. Your brothers are here too.

We must fight against the spirit of unconscious cruelty with which we treat the animals. Animals suffer as much as we do. True humanity does not allow us to impose such sufferings on them. It is our duty to make the whole world recognize it. Until we extend our circle of compassion to all living things, humanity will not find peace.