The great are only great because we are on our knees. Let us rise - Pierre-Joseph Proudhon

For me, the response is simple. All ideas are false, that is to say contradictory and irrational, if one takes them in an exclusive and absolute sense, or if one allows oneself to be carried away by that sense; all are true, susceptible to realization and use, if one takes them together with others, or in evolution.

For some time they talked of reformation; those who apparently desired it most favoring it only for their own profit, and the people who were to be the gainers expecting little and saying nothing. For a long time these poor people, either from distrust, incredulity, or despair, hesitated to ask for their rights: it is said that the habit of serving had taken the courage away from those old communes, which in the middle ages were so bold.

Habit, like a second nature, has the power of fixing in the mind new categorical forms derived from the appearances which impress us, and by them usually stripped of objective reality, but whose influence over our judgments is no less predetermining than that of the original categories. Hence we reason by the eternal and absolute laws of our mind, and at the same time by the secondary rules, ordinarily faulty, which are suggested to us by imperfect observation. This is the most fecund source of false prejudices, and the permanent and often invincible cause of a multitude of errors. The bias resulting from these prejudices is so strong that often, even when we are fighting against a principle which our mind thinks false, which is repugnant to our reason, and which our conscience disapproves, we defend it without knowing it, we reason in accordance with it, and we obey it while attacking it. Enclosed within a circle, our mind revolves about itself, until a new observation, creating within us new ideas, brings to view an external principle which delivers us from the phantom by which our imagination is possessed.