Lex and Lionel in “Unfinished Business”

Lex

Dr. Litvack told me the odds of survival I had going into surgery. Pretty reckless roll of the dice, don't you think?

Lionel

On the contrary, son. What I did may appear callous, but opting for my son to have surgery was a deliberate decision.

Lex

But it wasn't your decision to make, was it? You went against the doctors' advice not because you wanted to save me, but because you couldn't bear having a cripple for a son.

Lionel

You may hate me for taking the risk, but I had to make a choice. And you're alive, and you can walk. I had to give you that chance.

Lex

And what if I hadn't made it? How would you have justified your decision then? How dare you play God with my life.