The most fruitful and natural exercise of the mind, in my opinion, is conversation; I find the use of it more sweet than of any other action of life; and for that reason it is that, if I were now compelled to choose, I should sooner, I think, consent to lose my sight, than my hearing and speech.  The Athenians, and also the Romans, kept this exercise in great honour in their academies; the Italians retain some traces of it to this day, to their great advantage, as is manifest by the comparison of our understandings with theirs.  The study of books is a languishing and feeble motion that heats not, whereas conversation teaches and exercises at once.  If I converse with a strong mind and a rough disputant, he presses upon my flanks, and pricks me right and left; his imaginations stir up mine; jealousy, glory, and contention, stimulate and raise me up to something above myself; and acquiescence is a quality altogether tedious in discourse.  But, as our mind fortifies itself by the communication of vigorous and regular understandings, ’tis not to be expressed how much it loses and degenerates by the continual commerce and familiarity we have with mean and weak spirits; there is no contagion that spreads like that; I know sufficiently by experience what ’tis worth a yard.  I love to discourse and dispute, but it is with but few men, and for myself; for to do it as a spectacle and entertainment to great persons, and to make of a man’s wit and words competitive parade is, in my opinion, very unbecoming a man of honour.

Folly is a bad quality; but not to be able to endure it, to fret and vex at it, as I do, is another sort of disease little less troublesome than folly itself; and is the thing that I will now accuse in myself.  I enter into conference, and dispute with great liberty and facility, forasmuch as opinion meets in me with a soil very unfit for penetration, and wherein to take any deep root; no propositions astonish me, no belief offends me, though never so contrary to my own; there is no so frivolous and extravagant fancy that does not seem to me suitable to the production of human wit.  We, who deprive our judgment of the right of determining, look indifferently upon the diverse opinions, and if we incline not our judgment to them, yet we easily give them the hearing:  Where one scale is totally empty, I let the other waver under an old wife’s dreams; and I think myself excusable, if I prefer the odd number; Thursday rather than Friday; if I had rather be the twelfth or fourteenth than the thirteenth at table; if I had rather, on a journey, see a hare run by me than cross my way, and rather give my man my left foot than my right, when he comes to put on my stockings.  All such reveries as are in credit around us, deserve at least a hearing:  for my part, they only with me import inanity, but they import that.  Moreover, vulgar and casual opinions are something more than nothing in nature; and he who will not suffer himself to proceed so far, falls, peradventure, into the vice of obstinacy, to avoid that of superstition.