I want to know what God thinks. The rest are details.

Although words exist for the most part for the transmission of ideas, there are some which produce such violent disturbance in our feelings that the role they play in the transmission of ideas is lost in the background.

It is little short of a miracle that modern methods of instruction have not already completely strangled the holy curiosity of inquiry.... I believe that one could even deprive a healthy beast of prey of its voraciousness if one could force it with a whip to eat continuously whether it were hungry or not.

Marie Curie is, of all celebrated beings, the only one whom fame has not corrupted.

[There is] a duty in refusing to cooperate in any undertaking that violates the Constitutional rights of the individual. This holds in particular for all inquisitions that are concerned with the private life and the political affiliations of the citizens.

Though our conduct seems so very different from that of the higher animals, the primary instincts are much alike in them and in us.

You cannot prepare for war and peace at the same time.