Above all, do not join the wrong ideological groups or movements, in order to "do something.” By "ideological” (in this context), I mean groups or movements proclaiming some vaguely generalized, undefined (and, usually, contradictory) political goals. (E. g., the Conservative Party, that subordinates reason to faith, and substitutes theocracy for capitalism; or the "libertarian” hippies, who subordinate reason to whims, and substitute anarchism for capitalism.) To join such groups means to reverse the philosophical hierarchy and to sell out fundamental principles for the sake of some superficial political action which is bound to fail.