“Change itself is neither good nor bad, but knowledge is always useful.”

“Anger has its place, but it will not serve you here, the way of the warrior is the way of knowing. Of that knowledge requires you to use anger, then you use anger, but you cannot wrest forth knowledge by losing your temper.”

“If you wish to be happy,Eragon, Think not of what is to come nor of that which you have no control over but rather of the now and that which you are able to change”

“Do not feel bad because of it.  It's impossible to go through life unscathed.  Nor should you want to.  By the hurts we accumulate, we measure both our follies and our accomplishment.”

“Yet comprehension does not imply belief. Nor does it mean that those who purvey such beliefs do so for more than… materialgain.”

“Things that change and are lost, that is what's worth preserving.”

“Always it is thus with my new students, and especially with the human ones; the mind is the last muscle they train or use, and the one that they regard the least. Ask them about swordplay and they can list every blow from a duel a month old, but ask them to solve a problem or make a coherent statement and... well, I would be lucky to get more than a blank stare in return.”