Man has lost the capacity to foresee and to forestall. He will end by destroying the earth.

Compassion, in which all ethics must take root, can only attain its full breadth and depth if it embraces all living creatures and does not limit itself to mankind.

If the extension of your compassion does not include all living beings, then you will be unable to find peace by yourself.

We must all die. But that I can save him from days of torture, that is what I feel as my great and ever new privilege. Pain is a more terrible lord of mankind than even death itself.

Reverence for life is the highest court of appeal.

Our age is bent on trying to make the barren tree of skepticism fruitful by tying the fruits of truth on its branches.

Not one of us knows what effect his life produces, and what he gives to others; that is hidden from us and must remain so, though we are often allowed to see some little fraction of it, so that we may not lose courage.