It’s better to be sworn to an honest fool than to a lying scholar

I'm not the person I once was. I have Thorn now, and... I'm not fighting for myself anymore....It makes a difference....I used to think you were a fool to keep risking your life as you have...I know better now. I understand...why. I understand...' His [Murtagh] eyes widened and his grimace relaxed, as if his pain was forgotten, and an inner light seemed to illuminate his features. 'I understand-we understand.

The debate raged on for so long, at last Saphira had interrupted with a roar that shook the walls of the command tent. Then she said, I am sore and tired, and Eragon is doing a poor job of explaining himself. We have better things to do than stand around yammering like jackdaws, no? ... Good now listen to me. It was reflected Eragon, hard to argue with a dragon.

Consider non your superior, whatever their rank or station in life. Treat all fairly or they will seek revenge. Be careful with your money. Hold fast to your belief and others will listen." he continued at a slower pace, " of the affairs of love ... my only advice is to be honest. thats your most powerfull too to unlock a heart or gain forgiveness. that is all i have to say"Garrow to Roran p 64

Having no other recourse, Roran resorted to the unexpected: he stuck his head and neck out and shouted, "BAH!" just as he would if he were trying to scare someone in a dark hallway.

Moderation is a wiser policy than zealotry

From now on you're going to have to think. There's a reason why we're born with brains in our heads, not rocks.