The fellowship of those who bear the mark of pain: who are the members of this Fellowship? Those who have learnt by experience what physical pain and bodily anguish mean, belong together all the world over; they are united by a secret bond.

Let me give you a definition of ethics: It is good to maintain and further life it is bad to damage and destroy life.

Thinking about death... produces love for life. When we are familiar with death, we accept each week, each day, as a gift. Only if we are able thus to accept life bit by bit does it become precious.

We are united with all life that is in nature. Man can no longer live his life for himself alone.

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 quiet conscience is an invention of the devil.

The African is my brother but he is my younger brother by several centuries.