“There are some people who love to boast of their tolerance, but actually it is inspired by egotism; they want to be left alone in their own ideas, however wrong they be, so they plead for a tolerance of other people’s ideas. But this kind of tolerance is very dangerous, for it becomes intolerance as soon as the ego is disturbed or menaced. That is why a civilization which is tolerant about false ideas instead of being charitable to persons is on the eve of a great wave of intolerance and persecution.”
Source: Ven. Fulton J. Sheen, Way to Happiness, St. Pauls, 1998.