De gustibus non est disputandum, or de gustibus non disputandum est, is a Latin maxim meaning "In matters of taste, there can be no disputes" (literally "about tastes, it should not be disputed/discussed"). The implication is that everyone's personal preferences are merely subjective opinions that cannot be right or wrong, so they should never be argued about as if they were. Sometimes the phrase is expanded as De gustibus et coloribus... referring to tastes and colors. The phrase is most commonly rendered in English as "There is no accounting for taste(s)." The original quotation is an ancient Latin adage, i.e. Roman, and discussed by many philosophers and economists.
The phrase is misquoted in Act I of Anton Chekhov's play The Seagull. The character Shamrayev conflates it with the phrase de mortuis nil nisi bonum (in the alternate form: de mortuis, aut bene aut nihil: "of the dead, either [speak] good or [say] nothing"), resulting in "de gustibus aut bene, aut nihil", "Let nothing be said of taste but what is good."