There's no question dolphins are smarter than humans as they play more.

There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there.

A tyranny based on ... deception and maintained by terror must inevitably perish from the poison it generates within itself.

How many people are trapped in their everyday habits: part numb, part frightened, part indifferent? To have a better life we must keep choosing how we are living.

Modern education is competitive, nationalistic and separative. It has trained the child to regard material values as of major importance, to believe that his nation is also of major importance and superior to other nations and peoples. The general level of world information is high but usually biased, influenced by national prejudices, serving to make us citizens of our nation but not of the world.

What we don't know is much more than what we know.

The foundation of morality should not be made dependent on myth nor tied to any authority lest doubt about the myth or about the legitimacy of the authority imperil the foundation of sound judgment and action.