Lionel and Lex in “Unfinished Business”

Lionel

"Forgive them for they know not what they do". Is that what you expect from me? Forgiveness?

Lex

Don't try to make me out as your own personal Judas. I didn't come here for forgiveness. I came here to congratulate you on sweeping another mishap under the rug. Emily Dinsmore.

Lionel

Ah, yes, Emily Dinsmore. I should've remembered. You should've warned them. Belle Reve has a habit of misplacing its patients. The details. I've always tried to teach you, Lex. The devil is in the details. If you don't pay attention to the details, he'll win.

Lex

Then it's a good thing I'm a fast learner. You went through all the trouble of having your own son committed to an asylum and shooting 600 volts of electricity through his body just to cover up your trespasses, but like I said, Dad, you've gotten careless.