If, as I have reason to believe, I have disintegrated the nucleus of the atom, this is of greater significance than the war.

Gentlemen, now you will see that now you see nothing. And why you see nothing you will see presently.

Splitting the atom is like trying to shoot a gnat in the Albert Hall at night and using ten million rounds of ammunition on the off chance of getting it. That should convince you that the atom will always be a sink of energy and never a reservoir of energy.

All scientific men will be delighted to extend their warmest congratulations to Tesla and to express their appreciation of his great contributions to science.

Don't let me catch anyone talking about the Universe in my department.

The year 1896 ... marked the beginning of what has been aptly termed the heroic age of Physical Science. Never before in the history of physics has there been witnessed such a period of intense activity when discoveries of fundamental importance have followed one another with such bewildering rapidity.

The greatest contributor to the feeling of tension and fear of war arose from the power of the bombing aeroplane. If all nations would consent to abolish air bombardment . . . that would mean the greatest possible release from fear.