We must live as we think, otherwise we shall end up by thinking as we live.

[Cet enseignement, c’est qu’il faut vivre comme on pense, sinon, tôt ou tard, on finit par penser comme on a vécu.]

Paul Bourget (1852-1935) French critic, poet, novelist

The Demon of Noonday [Le Démon de Midi], Epilogue (1914)

Alt. trans.: "This teaching is to live as we think, otherwise, sooner or later, we end up thinking as we lived."