In the same way as the tree bears the same fruit year after year, but each time new fruit, all lastingly valuable ideas in thinking must always be reborn.

Jesus no doubt fits his teaching into the late-Jewish messianic dogma. But he does not think dogmatically. He formulates no doctrine. He is far from judging any man's belief by reference to any standard of dogmatic correctness. Nowhere does he demand of his hearers that they shall sacrifice thinking to believing.

Within every patient there resides a doctor, and we as physicians are at our best when we we put our patients in touch with the doctor inside themselves.

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.

Train yourself never to put off the word or action for the expression of gratitude.

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.

The time will come when public opinion will no longer tolerate amusements based on the mistreatment and killing of animals. The time will come, but when? When will we reach the point that hunting, the pleasure in killing animals for sport, will be regarded as a mental aberration?