I like neither new clothes nor new kinds of food.

Only one who devotes himself to a cause with his whole strength and soul can be a true master. For this reason mastery demands all of a person.

It is difficult to say what truth is, but sometimes it is so easy to recognize a falsehood.

To the extent math refers to reality, we are not certain to the extent we are certain, math does not refer to reality.

It is the same with people as it is with riding a bike. Only when moving can one comfortably maintain one's balance.

Even if only 2 percent of those assigned to perform military service should announce their refusal to fight, governments would be powerless, they would not dare send such a large number of people to jail.

Why do people speak of great men in terms of nationality? Great Germans, great Englishmen? Goethe always protested against being called a German poet. Great men are simply men and are not to be considered from the point of view of nationality, nor should the environment in which they were brought up be taken into account.