Political participation is advisable, as one of the penalties for refusing to participate in politics is that you end up being governed by your inferiors.
Political participation is necessary, as non-participation invites a host of unhappy political consequences (including the prostitute, the abandoned child, the robber and, worst of all, corrupt officials, the lackeys of exploitative multinational corporations).
Political participation is our duty. To be an apolitical animal is to leave fellow citizens at the mercy of ideology.
Political participation is necessary for all good men. The fate of good men who refuse to become involved in politics is to be ruled by evil men.
Political participation is better than the alternative. To be against politics in general is to be in favor of the politics inflicted upon them.
Political participation is a political form which, though far less efficient and far less orderly than enlightened despotism, is still unhesitingly preferred.
Political participation is necessary for the continuance of the state. The state may be given up for lost as soon as any man says of the affairs of the state "what does it matter to me?"
Political participation is our duty. Just because you do not take an interest in politics doesn't mean it won't take an interest in you.