Have the courage to take your own thoughts seriously, for they will shape you.

The release of atomic power has changed everything except our way of thinking ... the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker. (1945)

Most people stop looking when they find the proverbial needle in the haystack. I would continue looking to see if there were other needles.

The one who walks alone, is likely to find himself in places no one has ever been.

In conclusion I wish to say that in working at the problem here dealt with I have had the loyal assistance of my friend and colleague M. Besso, and that I am indebted to him for several valuable suggestions.

It occurred to me by intuition, and music was the driving force behind that intuition. My discovery was the result of musical perception.

The distinction between the past, present and future is only a stubbornly persistent illusion.