The heart says yes, but the mind says no.

Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.

The theoretical idea ... does not arise apart from and independent of experience; nor can it be derived from experience by a purely logical procedure. It is produced by a creative act. Once a theoretical idea has been acquired, one does well to hold fast to it until it leads to an untenable conclusion.

School failed me, and I failed the school. It bored me. The teachers behaved like Feldwebel (sergeants). I wanted to learn what I wanted to know, but they wanted me to learn for the exam. What I hated most was the competitive system there, and especially sports. Because of this, I wasn't worth anything, and several times they suggested I leave.

One is born into a herd of buffaloes and must be glad if one is not trampled under foot before one's time.

Politics is far more complicated than physics.

Do you remember how electrical currents and 'unseen waves' were laughed at? The knowledge about man is still in its infancy.