Oh, are we on Churchill quotes? I like all the classics, of course...
"The gratitude of every home in our Island, in our Empire, and indeed throughout the world, except in the abodes of the guilty, goes out to the British airmen who, undaunted by odds, unwearied in their constant challenge and mortal danger, are turning the tide of the World War by their prowess and by their devotion. Never in the field of human conflict was so much owed by so many to so few. All hearts go out to the fighter pilots, whose brilliant actions we see with our own eyes day after day…"
"Let us therefore brace ourselves to our duties, and so bear ourselves that if the British Empire and its Commonwealth last for a thousand years, men will still say, 'This was their Finest Hour.'"
And my favourite:
"This is the lesson: 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 honour and good sense. Never yield to force; never yield to the apparently overwhelming might of the enemy."
Franklin D. Roosevelt:
"A conservative is a man with two perfectly good legs who, however, has never learned to walk forward."
"When you get to the end of your rope, tie a knot and hang on."
"In the truest sense, freedom cannot be bestowed; it must be achieved."
Theodore Roosevelt:
"Patriotism means to stand by the country. It does not mean to stand by the president."
"Don't hit at all if it is honorably possible to avoid hitting; but never hit soft!"
Socrates:
"The only good is knowledge and the only evil is ignorance."
Albus Dumbledore:
"After all, to the well organized mind, death is but the next great adventure."
Some mottos I like:
"Ad astra per aspera." (A difficult road leads to the stars.)
"Qui audet adipiscitur." (Who dares, wins.)
"Ton Bras Sait Porter L'Epée." (Ready to fight.)
One more motto:
"Facta non verba." (Action, not words.)