This text analyzes the concept of philosophical superstition according to Joseph Maria Bocheński. It specifies sufficient conditions for beliefs and statements to be a philosophical superstition. Philosophical superstitions consist in specific contradictions in beliefs or statements: (a) Superstitions assume or contain contradictory beliefs or statements or/and (b) they are inconsistent with direct experiences or (c) beliefs of their followers, or/and (d) without sufficient reasons superstitions contradict what has already been sufficiently justified or/and (e) they contradict semantic rules of reference of (...) a language in which they are formulated. (shrink)