[DoctorMichael]

"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."
~Winston Churchill

"This then, my lords and gentlemen, is the message which we send forth today to all states and nations, bound or free, to all the men in all the lands who care for freedom's cause. To our Allies and well-wishers in Europe, to our American friends and helpers drawing ever closer in their might across the ocean, this is the message:
Lift up your hearts, all will come right. Out of depths of sorrow and sacrifice will be born again the glory of mankind".
~Winston Churchill

[beachn4fun]

Here's one I especially like ---

Beware lest in your anxiety to avoid war you obtain a master.
----Demosthenes