He that distrusts his own judgment in everything...

He that distrusts his own judgment in everything, and thinks his understanding not to be relied on in the search of truth, cuts off his own legs that he may be carried up and down by others, and makes himself a ridiculous dependant upon the knowledge of others, which can possibly be of no use to him; for I can no more know anything by another man's understanding than I can see by another man's eyes.

So much I know, so much truth I have got; so far I am in the right, as I do really know myself; whatever other men have, it is in their possession, it belongs not to me, nor can be communicated to me but by making me alike knowing; it is a treasure that cannot be lent or made over.

On the other side, he that thinks his understanding capable of all things, mounts upon wings of his own fancy, though indeed Nature never meant him any, and so, venturing into the vast expanse of incomprehensible verities, only makes good the fable of Icarus, and loses himself in the abyss. We are here in the state of mediocrity; finite creatures, furnished with powers and faculties very well fitted to some purposes, but very disproportionate to the vast and unlimited extent of things.

It would, therefore, be of great service to us to know how far our faculties can reach, that so we might not go about to fathom where our line is too short; to know what things are the proper objects of our inquiries and understanding, and where it is we ought to stop, and launch out no further for fear of losing ourselves or our labour.

This perhaps, is an inquiry of as much difficulty as any we shall find in our way of knowledge, and fit to be resolved by a man when he is come to the end of his study, and not to be proposed to one at his setting out; it being properly the result to be expected after a long and diligent research to determine what is knowable and what not, and not a question to be resolved by the guesses of one who has scarce yet acquainted himself with obvious truths.

I shall therefore, at present suspend the thoughts I have had upon this subject, which ought maturely to be considered of, always remembering that things infinite are too large for our capacity; we can have no comprehensive knowledge of them, and our thoughts are at a loss and confounded when they pry too curiously into them.