Stand still. The trees ahead and bush beside you are not lost.

Curiosity is its own reason.

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.

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

Unlimited competition leads to a huge waste of labor, and to that crippling of the social consciousness of individuals.

Mankind must give up war in the Atomic Era. What is at stake is the life or death of humanity.

Fraulein Noether was the most significant creative mathematical genius thus far produced since the higher education of women began.