What is the use of living, if it be not to strive for noble causes and to make this muddled world a better place for those who will live in it after we are gone? How else can we put ourselves in harmonious relation with the great verities and consolations of the infinite and the eternal? And I avow my faith that we are marching towards better days. Humanity will not be cast down. We are going on swinging bravely forward along the grand high road and already behind the distant mountains is the promise of the sun.

Never abandon life. There is a way out of everything except death.

A sheep in sheep's clothing.

Good night, then - sleep to gather strength for the morning. For the morning will come. Brightly will it shine on the brave and true, kindly on all who suffer for the cause, glorious upon the tombs of heroes. Thus will shine the dawn.

Nothing can be more abhorrent to democracy than to imprison a person or keep him in prison because he is unpopular. This is really the test of civilization.

It is better to be frightened now than killed hereafter

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