Henry V. e-mails:
I have a question. Is there a technical philosophical term for the case when a principle, applied consistently, leads to its own negation? I have in mind the example of the principle of civic tolerance, that when consistently applied to groups such as Muslims who wish to see Sharia law instituted in the West, would lead to the destruction of tolerance. Many other examples can be found in contemporary politics.
This is a good question, Henry, and while I thank you for it, I am not sure of the answer, though 'fallacy of accident' is in the ball park as I explain below. You don't tell me what you mean by 'civic tolerance,' or how the principle of civic tolerance should read, and without a statement of the principle, it is hard to have a disciplined discussion. So let me extract a principle from the following UNESCO paragraph:
Tolerance is respect, acceptance and appreciation of the rich diversity of our world's cultures, our forms of expression and ways of being human. It is fostered by knowledge, openness, communication, and freedom of thought, conscience and belief. Tolerance is harmony in difference. It is not only a moral duty, it is also a political and legal requirement. Tolerance, the virtue that makes peace possible, contributes to the replacement of the culture of war by a culture of peace.
PT. It is morally obligatory, and ought everywhere to be legally obligatory, that everyone respect, accept, and appreciate the diversity of the world's cultures, forms of expression, and ways of being human.