"Things should be made as simple as possible, but not any simpler."

"Joy in looking and comprehending is nature's most beautiful gift."

"Sometimes one pays most for the things one gets for nothing."

"Common sense is the collection of prejudices acquired by age 18. "

"Problems cannot be solved at the same level of awareness that created them."

"Strange is our Situation Here Upon Earth"

"Few are those who see with their own eyes and feel with their own hearts."

"If you are out to describe the truth, leave elegance to the tailor."

"An empty stomach is not a good political advisor."

"Anyone who has never made a mistake has never tried anything new."

"I never think of the future. It comes soon enough."

"Force always attracts men of low morality, and I believe it to be an invariable rule that tyrants of genius are succeeded by scoundrels."

"If A equals success, then the formula is: A=X+Y+Z. X is work. Y is play. Z is keep your mouth shut."

"Try not to become a man of success but rather to become a man of value."

"Perfection of means and confusion of ends seem to characterize our age."

"Not everything that counts can be counted, and not everything that can be counted counts."

"The faster you go, the shorter you are."

"Nationalism is an infantile sickness. It is the measles of the human race."

"The only reason for time is so that everything doesn't happen at once."

"If my theory of relativity is proven successful, Germany will claim me as a German and France will declare that I am a citizen of the world."

"The wireless telegraph is not difficult to understand. The ordinary telegraph is like a very long cat. You pull the tail in New York, and it meows in Los Angeles. The wireless is the same, only without the cat. "

"The foundation of morality should not be made dependent on myth nor tied to any authority lest doubt about the myth or about the legitimacy of the authority imperil the foundation of sound judgment and action."

"Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves." (1929)

"Weakness of attitude becomes weakness of character."

"Perfections of mean and confusion of goals seem -in my opinion- to characterize our age. "

"Politics is a pendulum whose swings between anarchy and tyranny are fueled by perpetually rejuvenated illusions."

"All our lauded technological progress -- our very civilization - is like the axe in the hand of the pathological criminal."

"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."

"Desire for approval and recognition is a healthy motive, but the desire to be acknowledged as better, stronger or more intelligent than a fellow being or fellow scholar easily leads to an excessively egoistic psychological adjustment, which may become in juries for the individual and for the community. "
"On Education," Address to the State University of New York at Albany, in Ideas and Opinions

"We have penetrated far less deeply into the regularities obtaining within the realm of living things, but deeply enough nevertheless to sense at least the rule of fixed necessity ..... what is still lacking here is a grasp of the connections of profound generality, but not a knowledge of order itself.

"(1) Those instrumental goods which should serve to maintain the life and health of all human beings should be produced by the least possible labor of all. (2) The satisfaction of physical needs is indeed the indispensable precondition of a satisfactory existence, but in itself is not enough. In order to be content men must also have the possibility of developing their intellectual and artistic powers to whatever extent accord with their personal characteristics and abilities."

"If the possibility of the spiritual development of all individuals is to be secured, a second kind of outward freedom is necessary. The development of science and of the creative activities of the spirit in general requires still another kind of freedom, which may be characterized as inward freedom. It is this freedom of the spirit which consists in the interdependence of thought from the restrictions of authoritarian and social prejudices as well as from unphilosophical routinizing and habit in general. This inward freedom is an infrequent gift of nature and a worthy object for the individual."