The vague, cloudy men are always talking against intolerance. Why, our very calling is to be intolerant; intolerant of proved error, and known sin. The evil is that we are not intolerant enough, though at the same time, we are not benevolent enough. A man, however, must have a clear eye and a large heart, before he has a right to be intolerant, either towards concrete error or concrete sin. At the abstract he may hit as hard as he likes. Propositions don’t feel pain.