The great fault of all ethics hitherto has been that they believed themselves to have to deal only with the relations of man to man. In reality, however, the question is what is his attitude to the world and all life that comes within his reach.

Pain is a more terrible lord of mankind than even death itself.

The mistake made by all previous systems of ethics has been the failure to recognize that life as such is the mysterious value with which they have to deal. All spiritual life meets us within natural life. Reverence for life, therefore, is applied to natural life and spiritual life alike. In the parable of Jesus, the shepherd saves not merely the soul of the lost sheep but the whole animal. The stronger the reverence for natural life, the stronger grows also that for spiritual life.

All art speaks in signs and symbols. No one can explain how it happens that the artist can waken to life in us the existence that he has seen and lives through. No artistic speech is the adequate expression of what it represents; its vital force comes from what is unspoken in it.

Nature compels us to recognize the fact of mutual dependence, each life necessarily helping the other lives who are linked to it. In the very fibers of our being, we bear within ourselves the fact of the solidarity of life.

Don't stop to ask whether the animal or plant you meet deserves your sympathy, or how much it feels, or even whether it can feel at all: respect it and consider all life sacred.

Each act of unfaithfulness toward our inner being is a blot on our souls. If we continue to be unfaithful, our souls are eventually torn apart and we slowly bleed to death.