Quote by Karl Popper“No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.”— Karl PopperFavCopyquote 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 authorKarl PopperMore from Karl Popper