Creative energy is more critical than learning.

I would absolutely refuse any direct or indirect war service and would try to persuade my friends to do the same, regardless of the reasons for the cause of a war.

Hope that justice will be done to those brave men who stood up for their convictions.

Freedom of teaching and of opinion in book or press is the foundation for the sound and natural development of any people.

The world needs heroes and it's better they be harmless men like me than villains like Hitler

One has a feeling that one has a kind of home in this timeless community of human beings that strive for truth. ... I have always believed that Jesus meant by the Kingdom of God the small group scattered all through time of intellectually and ethically valuable people.

The thinking that got us to where we are is not the thinking that will get us to where we want to be.