In the Radiation Laboratory we count it a privilege to do everything we can to assist our medical colleagues in the application of these new tools to the problems of human suffering.

No individual is alone responsible for a single stepping stone along the path of progress, and where the path is smooth progress is most rapid.

Let us cherish the hope that the day is not far distant when we will be in the midst of this next adventure.

The day when the scientist, no matter how devoted, may make significant progress alone and without material help is past. This fact is most self-evident in our work.

I have suggested that scientific progress requires a favorable environment.

From the beginning of the Radiation Laboratory, I have had the rare good fortune of being in the center of a group of men of high ability, enthusiastic and completely devoted to scientific pursuits.

I have gotten over feeling badly. We would be eternally miserable if our errors worried us too much because as we push forward we will make plenty more.

The atomic bombs will surely shorten the war, and let us hope that they will effectively end war as a possibility in human affairs.

It never does much good to find out why you can't; put your effort into what you can do.

But there is no joy in Mudville - mighty Casey has "struck out."

Certainly, it may bring to light such a deeper knowledge of the structure of matter as to constitute a veritable discontinuity in the progress of science.

They were all becoming brothers, in the manner he had seen before: facing death together was the greatest of levelers.

All great authors are seers.

Immigration, a lexicon. You're a 'migrant' when you're very poor; 'immigrant' when you're not so poor; and 'expat' when you're rich.

I have a dream that I will fulfill. And nothing else will distract me from my path.

If I had found the words I was looking for, I would not have read so much.

If you're associated with the Philadelphia media or town, you look for negatives. I don't know if there's something about their upbringing or they have too many hoagies, or too much cream cheese.

I still call myself a communist, because communism is no more what Russia made of it than Christianity is what the churches make of it.

Happiness is a small and unworthy goal for something as big and fancy as a whole lifetime, and should be taken in small doses.

Confidence gives a fool the advantage over a wise man.

Behold the threaden sails, Borne with the invisible and creeping wind, Draw the huge bottoms through the furrow'd sea, Breasting the lofty surge