Ircumcision, an archaic ritual mutilation that has no justification whatever and no place in a civilized society.

Human beings are the only creatures who are able to behave irrationally in the name of reason.

It is not the most lovable individuals who stand more in need of love, but the most unlovable

The indifference, callousness and contempt that so many people exhibit toward animals is evil first because it results in great suffering in animals, and second because it results in an incalculably great impoverishment of the human spirit. All education should be directed toward the refinement of the individual's sensibilities in relation not only to one's fellow humans everywhere, but to all things whatsoever.

The measure of man's humanity is the extent and intensity of his love for mankind.

The deepest personal defeat suffered by human beings is constituted by the difference between what one was capable of becoming and what one has in fact become.

The majority of people believe in incredible things which are absolutely false. The majority of people daily act in a manner prejudicial to their general well-being.