“Since the mathematicians have invaded the theory of relativity I do not understand it myself any more.”

“Never attribute to malice that which can be adequately explained by stupidity, but don't rule out malice.”

“When I am judging a theory, I ask myself whether, if I were God, I would have arranged the world in such a way.”

“Wisdom is not a product of schooling but of the lifelong attempt to acquire it.”

“Many of the things you can count, don't count. Many of the things you can't count, really count.”

“Never do anything against conscience, even if the state demands it.”

“Bir insanın marş eşliğinde uygun adım yürümekten keyif alabilmesi, onu küçümsemem için yeterli bir nedendir. O büyük beyni, ona bir yanlışlık sonucu verilmiştir.”

“The tendencies we have mentioned are something new for America. They arose when, under the influence of the two World Wars and the consequent concentration of all forces on a military goal, a predominantly military mentality developed, which with the almost sudden victory became even more accentuated. The characteristic feature of this mentality is that people place the importance of what Bertrand Russell so tellingly terms “naked power” far above all other factors which affect the relations between peoples. The Germans, misled by Bismarck’s successes in particular, underwent just such a transformation of their mentality—in consequence of which they were entirely ruined in less than a hundred years. I must frankly confess that the foreign policy of the United States since the termination of hostilities has reminded me, sometimes irresistibly, of the attitude of Germany under Kaiser Wilhelm II, and I know that, independent of me, this analogy has most painfully occurred to others as well. It is characteristic of the military mentality that non-human factors (atom bombs, strategic bases, weapons of all sorts, the possession of raw materials, etc.) are held essential, while the human being, his desires and thoughts—in short, the psychological factors—are considered as unimportant and secondary. Herein lies a certain resemblance to Marxism, at least insofar as its theoretical side alone is kept in view. The individual is degraded to a mere instrument; he becomes “human materiel.” The normal ends of human aspiration vanish with such a viewpoint. Instead, the military mentality raises “naked power” as a goal in itself—one of the strangest illusions to which men can succumb.”

“I don't try to imagine a personal God; it suffices to stand in awe at the structure of the world, insofar as it allows our inadequate senses to appreciate it.”

“Bear in mind that the wonderful things you learn in your schools are the work of many generations. All this is put in your hands as your inheritance in order that you may receive it, honor it, add to it, and one day faithfully hand it on to your children.”

“Paper is to write things down that we need to remember. Our brains are used to think.”

“Locura es hacer la misma cosa una y otra vez esperando obtener diferentes resultados”

“The hardest thing in the world to understand is the income tax.”

“I must be willing to give up what I am in order to become what I will be.”

“The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.”