Edward Verrall Lucas,
Dictionary of National Biography
(1901)
“ The native acuteness and ingenuity of his intellect led him to devote much attention to formal logic, in whose intricate puzzles he delighted, and he almost seemed to have convinced himself that it was an engine for the discovery of new truth, instead of a means of detecting error that more could be got out of the premisses than was put into them. ”
