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

The stronger the reverence for natural life, the stronger grows also that for spiritual life.

The elemental fact, present in our consciousness every moment of our existence, is: I am life that wills to live, in the midst of life that wills to live.... The essence of the humane spirit is: Preserve life, promote life, help life to achieve its highest destiny. The essence of Evil is: Destroy life, harm life, hamper the development of life

Ethics is in its unqualified form extended responsibility with regard to everything that has life.

At that point in life where your talent meets the needs of the world, that is where God wants you to be.

Everything deep is also simple and can be reproduced simply as long as its reference to the whole truth is maintained. But what matters is not what is witty but what is true.

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.