[M]an is not permitted without censure to follow his own thoughts in the search of truth, when they lead him ever so little out of the common road. - John Locke

Few men think, yet all will have opinions. Hence men’s opinions are superficial and confused.

We are all short sighted, and very often see but one side of a matter; our views are not extended to all that has a connection with it. From this defect I think no man is free. We see but in part, and we know but in part, and therefore it is no wonder we conclude not right from our partial views. This might instruct the proudest esteemer of his own parts, how useful it is to talk and consult with others, even such as come short of him in capacity, quickness and penetration: for since no one sees all, and we generally have different prospects of the same thing, according to our different, as I may say, positions to it, it is not incongruous to think nor beneath any man to try, whether another may not have notions of things which have escaped him, and which his reason would make use of if they came into his mind.

Our Business here is not to know all things, but those which concern our conduct.