This truth may be unfashionable, unpalatable, no doubt unpopular, but, if it is the truth, the story of mankind shows that war was universal and unceasing for millions of years before armaments were invented or armies organized. Indeed, the lucid intervals of peace and order only occurred in human history after armaments in the hands of strong governments have come into being, and civilization in every age has been nursed only in cradles guarded by superior weapons and superior discipline.

Even the most eminent persons are subject to the laws of gravity.

Democracy means that when there's a knock in the door at 3 am, it's probably the milkman.

I did not like the man [Niels Bohr] when you showed him to me, with his hair all overhis head.

Here is the answer which I will give to President Roosevelt. Give us the tools, and we will finish the job.

Never give in. Never give in. Never, never, never, never -- in nothing, great or small, large or petty -- never give in, except to convictions of honor and good sense.

May the pain you have known and the conflict you have experienced give you the strength to walk through life facing each new situation with courage and optimism.