Quote by Laurence J. Peter“A man doesn't know what he knows until he knows what he doesn't know.”— Laurence J. PeterFavCopyquote and authorShare ImageShare imageCreate a quote imagePick a color theme, then download a format.Color themeMatch siteFavQsMintSunMidnightFormatPortrait1080 × 1350 · 4:5Landscape1200 × 630 · 1.91:1About the authorLaurence J. PeterMore from Laurence J. Peter