Clarity as a philosophical virtue has roots in Descartes's epistemology — the first rule of his method requires that clear and distinct ideas be accepted as true. The analytical tradition of philosophy (Frege,
Russell, Wittgenstein's "Tractatus") took clarity of
expression as a methodological commitment: philosophy's task is to clarify thought and expose the confusions generated by ordinary language. The Continental tradition often
values productive difficulty over false clarity, arguing that the demand for immediate transparency can prevent thinking from reaching its proper depth (Heidegger's dense prose, Celan's hermetic verse). For poets, the question of clarity is both aesthetic and ethical: the poem that achieves genuine clarity (not simplicity but lucidity — a complex thing made as clear as it can be) has fulfilled an
obligation to the reader. The distinction between clarity and simplicity is philosophically important. Related terms: lucidity, transparency, precision, analytical philosophy, ordinary language philosophy, the demand for intelligibility.