Courageous men never lose the zest for living even though their life situation is zestless; cowardly men, overwhelmed by the uncertainties of life, lose the will to live. We must constantly build dykes of courage to hold back the flood of fear.

Civilization and violence are antithetical concepts.

Science keeps religion from sinking into the valley of crippling irrationalism and paralyzing obscurantism. Religion prevents science from falling into the marsh of obsolete materialism and moral nihilism.

When you are right you cannot be too radical; when you are wrong, you cannot be too conservative.

The most dangerous criminal may be the man gifted with reason, but with no morals.

One of the most persistent ambiguities that we face is that everybody talks about peace as a goal. However, it does not take sharpest-eyed sophistication to discern that while everbody talks about peace, peace has become practically nobody's business among the power-wielders. Many men cry Peace! Peace! but they refuse to do the things that make for peace.

America, you must be born again!