Pues es un exceso de imaginación lo que hace que los hombres se vuelvan cobardes, no es el miedo como muchos creen. Galbatorix - Christopher Paolini

It got so that when he closed his eyes, letters and words danced in his mind. He thought of little else during that time.

First, let no one rule your mind or body. Take special care that your thoughts remain unfettered. One may be a free man and yet be bound tighter than a slave. Give men your ear, but not your heart. Show respect for those in power, but don’t follow them blindly. Judge with logic and reason, but comment not.
“Consider none 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 beliefs and others will listen.” He continued at a slower pace, “Of the affairs of love . . . my only advice is to be honest. That’s your most powerful tool to unlock a heart or gain forgiveness. That is all I have to say.

Love can be a terrible curse, Eragon. It can make you overlook even the largest flaws in a person's behavior.