The basic logic that hot is hot, cold is cold, daytime is light, and nighttime is dark, is tradition. It is the truth and at the same time it is tradition. Enlightenment is also the height of this kind of common sense. Therefore, it is regarded as a tradition. It is also regarded as infallible, as true and powerful. It never can be contradicted.
From The Collected Works of Chogyam Trungpa, Volume Two by Chögyam Trungpa, page 469