Their involvement took many different forms: some protested the price of food or even rioted; others joined clubs run by women; still others joined movements opposed to the Revolution, which ranged from small-scale assassinations to participation in the widespread uprising in the west of France against the revolutionary government.
the Skeptics, which is a broad term that applied to a large range of Greek philosophers that argued that if you cannot confidently claim knowledge (i.e. back up your claim with hard data and proof), then you shouldn't make truth claims.