If you will not fight for right when you can easily win without bloodshed; if you will not fight when your victory will be sure and not too costly; you may come to the moment when you will have to fight with all odds against you and only a precarious chance of survival. There may be even a worse fate, you may have to fight when there is no hope of victory, because it is better to perish than to live as slaves.

By swallowing evil words unsaid, no one has ever harmed his stomach.

There is no such thing as a good tax.

Ethics evolve naturally, and we trample upon them with laws created by reason and experience.

I am your servant. You have the right to dismiss me when you please. What you have no right to do is ask me to bear responsibility without the power of action.

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

The cultivation of a hobby and new forms of interest is a policy of first importance to a public man.