A Christmas Quote

Here's a great quote from Sports Night, after Casey McCall (Peter Krause) has given Isaac Jaffee (Robert Guillaume) a cheese grater; Casey was Isaac's "Secret Santa".

Isaac: A famous monk once said, 'I don't always know what the right thing to do is, my Lord, but I think that the fact that I want to please you, pleases you.'
Casey: But you would have preferred a book of famous monk quotations.
Isaac: No, you put some thought into me. What could be a greater gift?
Casey: I look like an idiot.
Isaac: Added bonus!

And how!