It is perfectly true that that government is best which governs least. It is equally true that that government is best which provides most.

The radical novelty of modern science lies precisely in the rejection of the belief... that the forces which move the stars and atoms are contingent upon the preferences of the human heart.

There is but one bond of peace that is both permanent and enriching: The increasing knowledge of the world in which experiment occurs.

We are quite rich enough to defend ourselves, whatever the cost. We must now learn that we are quite rich enough to educate ourselves as we need to be educated.

To create a minimum standard of life below which no human being can fall is the most elementary duty of the democratic state.

In the blood of the martyrs to intolerance are the seeds of unbelief

The self-evident truth which makes men invincible is that inalienably they are inviolable persons.