“Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand.”

“There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.”

“God is subtle but he is not malicious.”

“I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.”

“Due cose sono infinite: l'universo e la stupidità umana, ma riguardo l'universo ho ancora dei dubbi.”

“Kebanyakan orang mengatakan bahwa kecerdasanlah yang melahirkan seorang ilmuwan besar. Mereka salah, karakterlah yang melahirkannya.”

“Time is an illusion.”

“with every action theres an equal opposite reaction,with every problem theres a solution just a matter of taking action”

“I am a deeply religious nonbeliever. This is a somewhat new kind of religion.”

“The important thing is not to stop questioning. Curiosity has its own reason for existing.”

“I came to America because of the great, great freedom which I heard existed in this country. I made a mistake in selecting America as a land of freedom, a mistake I cannot repair in the balance of my lifetime.”

“The value of a man should be seen in what he gives and not in what he is able to receive.”

“The most aggravating thing about the younger generation is that I no longer belong to it.”

“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.”

“My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind.”