Krebs was much less complicated, and notably narrower in the frontal region. The frontal convolutions were also inferior in development to those of Gauss; and the anterior lobes were voluminous in another celebrated mathematician, Professor De Morgan, whose brain is in Bastian's possession.[1]
Stammering.—Men of genius frequently stammer. I will mention: Aristotle, Æsop, Demosthenes, Alcibiades, Cato of Utica, Virgil, Manzoni, Erasmus, Malherbe, C. Lamb, Turenne, Erasmus and Charles Darwin, Moses Mendelssohn, Charles V., Romiti, Cardan, Tartaglia.
Lefthandedness.—Many have been left-handed. Such were: Tiberius, Sebastian del Piombo, Michelangelo, Fléchier, Nigra, Buhl, Raphael of Montelupo, Bertillon. Leonardo da Vinci sketched rapidly with his left hand any figures which struck him, and only employed the right hand for those which were the mature result of his contemplation; for this reason his friends were persuaded that he only wrote with the left hand.[2] Mancinism or leftsidedness is to-day regarded as a character of atavism and degeneration.[3]
Sterility.—Many great men have remained bachelors; others, although married, have had no children. “The noblest works and foundations,” said Bacon,[4] “have proceeded from childless men, which have sought to express the images of their minds, where those of their bodies have failed. So the care of posterity is most in them that have no posterity.” And La Bruyère said, “These men have neither ancestors nor descendants; they themselves form their entire posterity.”
Croker, in his edition of Boswell, remarks that all the great English poets had no posterity. He names Shakespeare, Ben Jonson, Milton, Otway, Dryden, Rowe, Addison, Pope, Swift, Gay, Johnson, Goldsmith, Cowper. Hobbes, Camden, and many others, avoided marriage in order to have more time to devote to study.
