This is a collection of essays by Lewis and they contain all those delicious quotes you like throwing around like this fabulous one on the tyranny of the “for your own good” crowd:
Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron’s cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience.
There are bunch more like that. Read the book, start quoting Lewis, and sound like a really intellectual.