12. Every new idea inevitably encounters opposition and there is not one which is implanted without a fight. Well, in these cases the resistance is always in proportion to the importance of the foreseen results, because the greater these are the more numerous are the interests which are affected. If it is notoriously false, if it is taken as inconsequential, then no one becomes alarmed; everyone lets it go, being certain that it lacks vitality. If, however, it is true, if it is placed on a solid base, if it appears to have a future, then a secret presentiment alerts its antagonists to the fact that it constitutes a danger for them and to the order of things to whose maintenance they are pledged. Then they throw themselves against it and its adepts.
So we can measure the importance and the results of a new idea by the amount of emotion its appearance causes, by the violence of the opposition it provokes, as well as by the degree and persistence of the anger of its adversaries.