Courage isn't having the strength to go on - it is going on when you don't have strength.

Courage is like love, it must have hope for nourishment.

Valor is a gift. Those having it never know for sure whether they have it till the test comes. And those having it in one test never know for sure if they will have it when the next test comes.

With audacity one can undertake anything, but not do everything.

As to moral courage, I have very rarely met with the two o'clock in the morning kind. I mean unprepared courage, that which is necessary on an unexpected occasion, and which, in spite of the most unforeseen events, leaves full freedom of judgement and decision.

There are two levers for moving men - interest and fear.