“Yet if there really were a complete unified theory, it would also presumably determine our actions—so the theory itself would determine the outcome of our search for it! And why should it determine that we come to the right conclusions from the evidence? Might it not equally well determine that we draw the wrong conclusion? Or no conclusion at all?”

“If there really is a complete unified theory that governs everything, it presumably also determines your actions. But it does so in a way that is impossible to calculate for an organism that is as complicated as a human being. The reason we say that humans have free will is because we can't predict what they will do.”

“If we wish to draw philosophical conclusions about our own existence, our significance, and the significance of the universe itself, our conclusions should be based on empirical knowledge. A truly open mind means forcing our imaginations to conform to the evidence of reality, and not vice versa, whether or not we like the implications.”

“Our deeds determine us, as much as we determine our deeds.”

“Our lives are all that really belong to us, so it is how we use our lives that determines what kind of men we are”

“They were quiet for a while, eating, then Oromis asked, "Can you tell me, What is the most important mental tool a person can possess?"It was a serious question, and Eragon considered it for a reasonable span before he ventured to say, "Determination."Oromis tore the loaf in half with his long white fingers. "I can understand why you arrived at that conclusion-determination has served you well in your adventures-but no. I meant the tool most necessary to choose the best course of action in any given situation. Determination is as common among men who are dull and foolish as it is among those who are brilliant intellects. So, no, determination cannot be what we're looking for.”