Tradition survives in modernity only when reflexively justified. [causal]
With the advent of modernity, reflexivity takes on a different character. It is introduced into the very basis of system reproduction, such that thought and action are constantly refracted back upon one another. The routinisation of daily life has no intrinsic connections with the past at all, save in so far as what “was done before” happens to coincide with what can be defended in a principled way in the light of incoming knowledge. To sanction a practice because it is traditional will not do; tradition can be justified, but only in the light of knowledge which is not itself authenticated by tradition. Combined with the inertia of habit, this means that, even in the most modernised of modern societies, tradition continues to play a role. But this role is generally much less significant than is supposed by authors who focus attention upon the integration of tradition and modernity in the contemporary world. For justified tradition is tradition in sham clothing and receives its identity only from the reflexivity of the modern.
DEFINE: Clarifies that modern reflexivity reframes tradition's basis — justified tradition is tradition 'in sham clothing,' authenticated by knowledge rather than by itself.
Anthony Giddens, The Consequences of Moderni…, loc. 98