I would teach peace rather than war, love rather than hate.

What is the meaning of human life, or of organic life altogether? To answer this question at all implies a religion.

Now to the term 'relativity theory.' I admit that it is unfortunate, and has given occasion to philosophical misunderstandings.

If [quantum theory] is correct, it signifies the end of physics as a science.

Nuclear power is one hell of a way to boil water

What distinguishes the language of science from language as we ordinarily understand the word? ... What science strives for is an utmost acuteness and clarity of concepts as regards their mutual relation and their correspondence to sensory data.

In the teaching of geography and history a sympathetic understanding (should) be fostered for the characteristics of the different peoples of the world, especially for those who we are in the habit of describing as "primitive.