Wodehouse was profound at times; he just wasn't pompous about it. He tossed out startling zingers not to be preachy, but just to move his plots along.
"As we grow older and realize more clearly the limitations of human happiness, we come to see that the only real and abiding pleasure in life is to give pleasure to other people."
He said that in describing a minor character in "Life at Blandings." Baxter, as it turns out, had not yet reached that point in his life.