"It hath been an opinion, that the French are wiser than they seem, and the Spaniards seem wiser than they are. But howsoever it be between nations, certainly it is so between man and man. For as the Apostle saith of godliness, Having a shew of godliness, but denying the power thereof; so certainly there are in point of wisdom and sufficiency, that do nothing or little very solemnly: magno conatu nugas [trifles achieved by great effort]. It is a ridiculous thing and fit for a satire to persons of judgment, to see what shifts these formalists have, and what prospectives to make superficies to seem body that hath depth and bulk. Some are so close and reserved, as they will not shew their wares but by a dark light; and seem always to keep back somewhat; and when they know within themselves they speak of that they do not well know, would nevertheless seem to others to know of that which they may not well speak. Some help themselves with countenance and gesture, and are wise by signs; as Cicero saith of Piso, that when he answered him, he fetched one of his brows up to his forehead, and bent the other down to his chin; Respondes, altero ad frontem sublato, altero ad mentum depresso supercilio, crudelitatem tibi non placere [You answer, with one brow raised to your forehead and the other dropped to your chin, that cruelty does not please you]. Some think to bear it by speaking a great word, and being peremptory; and go on, and take by admittance that which they cannot make good. Some, whatsoever is beyond their reach, will seem to despise or make light of it as impertinent or curious; and so would have their ignorance seem judgment."
-- From "Of Seeming Wise," in
Selected Writings Of Francis Bacon. The Modern Library, New York, 1955.