I no longer believed in the known God of the Bible, but rather in the mysterious God expressed in nature.

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

I don't know what weapons will be used in the Third World War. But I can tell you what they'll use in the Fourth - rocks!

Information is not knowledge. The only source of knowledge is experience. You need experience to gain wisdom.

The economic anarchy of capitalist society as it exists today is, in my opinion, the real source of evil.

Intellectual growth should commence at birth and cease only at death.

I am a Jew, but I am enthralled by the luminous figure of the Nazarene….No one can read the Gospels without feeling the actual presence of Jesus.