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.

If you own something you cannot give away, then you don't own it, it owns you.

Truth has not special time of its own. Its hour is now - always and, indeed then most truly, when it seems unsuitable to actual circumstances.

If there is anything I have learned about men and women, it is that there is a deeper spirit of altruism than is ever evident. Just as the rivers we see are minor compared to the underground streams, so, too, the idealism that is visible is minor compared to what people carry in their hearts unreleased or scarcely released.

To work for the common good is the greatest creed.

The friend of nature is the man who feels himself inwardly united with everything that lives in nature, who shares in the fate of all creatures, helps them when he can in their pain and need, and as far as possible avoids injuring or taking life.

The demands of Jesus are difficult just because they require us to do something extraordinary. At the same time he asks us to regard these as something usual, ordinary.