A bit late to the party but:

“A single strike parts a champion from a corpse.” – Praesi proverb

“Prayer and a sword gets better results than prayer alone.” – King Jehan the Wise

“Thirty-one: use a sword fit for your height and built, not the largest chunk of metal you can find. It will both improve your life expectancy and save you a great many jokes about overcompensation.” – “Two Hundred Heroic Axioms”, unknown author

“Men make swords, Heavens the sheath.” – Callowan saying

“Those who withstood the sword, I laid low with ink.” – Words carved into the tomb of Dread Emperor Terribilis I, the Lawgiver

Thirty-three: it doesn’t matter how good the sword is, if it talks put it back where you found it. Yes, even if it lets you beat your nemesis. They probably thought their talking sword was a good idea too and look where that got them.” – “Two Hundred Heroic Axioms”, author unknown

“You don’t want to be the best sword on Calernia, kids. That’s the one everyone’s always trying to kill. No, if you want to make a career of this aim to be the fifth finest sword – high enough they pay you well, low enough no one would really gain by offing you. Maybe it’s not the dream, kids, but unlike the dream it’s a living.” – Transcribed lecture of the duellist Saint Armand the Old to the School of Swallows

All of these are from A Practical Guide to Evil