“If tomorrow were never to come, it would not be worth living today.”

“You cannot simultaneously prevent and prepare for war.”

“When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than any talent for abstract, positive thinking.”

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

“The mind that opens to a new idea never comes back to its original size.”

“The monotony and solitude of a quiet life stimulates the creative mind.”

“Life is a preparation for the future; and the best preparation for the future is to live as if there were none.”

“Imagination is everything”

“Tanda kecerdasan sejati bukanlah pengetahuan tapi imajinasi.”

“Ego=1/Knowledge " More the knowledge lesser the ego, lesser the knowledge more the ego.”

“This is a question too difficult for a mathematician. It should be asked of a philosopher"(when asked about completing his income tax form)”

“Oh juventud nunca dejes de pensar...”

“The greatest scientists are artists as well.”

“Politics is for the moment and equation is for eternity.”

“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.”