What We Practice, Not What We Preach

I’m just going to let this one stand on its own:

What we practice, not (save at rare intervals), what we preach is usually our great contribution to the conversion of others … — C. S. Lewis [1]

[1] C. S. Lewis, Letters of C.S. Lewis, ed. Walter Hooper (San Diego: Harcourt Brace, 1993), 446.