from a falsehood a falsehood, as " It is dark " from " It is night," if this latter be untrue. Also a truth may follow from a falsehood ; e.g. from " The earth flies " will follow " The earth exists " ; whereas from a truth no falsehood will follow, for from the existence of the earth it does not follow that the earth flies aloft. There are also certain insoluble arguments a : the Veiled Men, the Concealed, Sorites, Horned Folk, the Nobodies. The Veiled is as follows 6 : . . . " It cannot be that if two is few, three is not so likewise, nor that if two or three are few, four is not so ; and so on up to ten. But two is few, therefore so also is ten." . . . The Nobody argument is an argument whose major premiss consists of an indefinite and a definite clause, followed by a minor premiss and conclusion; for example, " If anyone . is here, he is not in Rhodes ; but there is some one here, therefore there is not anyone in Rhodes." . . . Such, then, is the logic of the Stoics, by which they seek to establish their point that the wise man is the true dialectician. For all things, they say, are discerned by means of logical study, including whatever falls within the province of Physics, and again whatever belongs to that of Ethics. For else, say they, as regards statement and reasoning Physics and Ethics could not tell how to express themselves, or again concerning the proper use of terms, how, the laws have defined various actions. Moreover, of the two kinds of common-sense inquiry included under Virtue one considers the nature of each the correct use of terms, how could he fail to lay down the proper names for actions ? "