“There's nothing weak about beauty, child. The only weakness in it is if you think it means anything important.”

“Never think there is anything impossible for the soul. It is the greatest heresy to think so. If there is sin, this is the only sin; to say that you are weak, or others are weak.”

“The greatest and most important thing in the world is founded on weakness. This is a remarkably sure foundation, for nothing is surer than that the people will be weak.”

“I blame myself without reserve for my weakness. It was merely weakness. One half-hour with Art was always more to me than a cycle with you. Nothing really at any period of my life was ever of the smallest importance to me compared with Art. But in the case of an artist, weakness is nothing less than a crime, when it is a weakness that paralyses the imagination.”

“You talking about computer weaknesses?""Yes. But also human weaknesses.""Meaning what?""Meaning the types of weaknesses that make humans let down their guard. Trust people they shouldn't trust.""You're talking about manipulating people.""Yes." Dexter and Lester were staring at each other. "I guess I am.”

“No looking back. Life goes one way only, and whatever opinions you hold about the past having nothing to do with anything but your own damn weakness. Nothing changes what already happened. It will always have happened. You either let it break you down or you don't.”