Philosophandum est, the ancients said: one must philosophize. The imperative is justified by the fact that even if you wanted to show that you did not want to philosophize, you would be doing philosophy at the same time. There is no way of escaping it. To justify rationally one's ideas, convictions, and moral evaluations allows the confrontation with others on the level of dialogue, eliminating the option of violence. Philosophy is the most potent vaccine against the conventions and the sharpest weapon for any constructive debate.