Stephen Brookfield (Reflective Thinkers)

Critical thinkers develop 'reflective scepticism': they do not take for granted the universal truth of some statement, policy or justification simply because of the authority ascribed to the source of this supposed truth ........ they call into question the belief that simply because some idea or social structure has existed unchanged for a period of time, it therefore must be (a) right and (b) the best possible arrangement.

Ref: Stephen Brookfield, 1987.