[12] Compare with this paragraph §§ 26 and 27 of the third edition of the essay on the principle of sufficient reason.
[13] Cf. Ch. 5 and 6 of the Supplement.
[14] Cf. Ch. 9 and 10 of the Supplement.
[15] Cf. Ch. 11 of Supplement.
[16] I am therefore of opinion that a science of physiognomy cannot, with certainty, go further than to lay down a few quite general rules. For example, the intellectual qualities are to be read in the forehead and the eyes; the moral qualities, the expression of will, in the mouth and lower part of the face. The forehead and the eyes interpret each other; either of them seen alone can only be half understood. Genius is never without a high, broad, finely-arched brow; but such a brow often occurs where there is no genius. A clever-looking person may the more certainly be judged to be so the uglier the face is; and a stupid-looking person may the more certainly be judged to be stupid the more beautiful the face is; for beauty, as the approximation to the type of humanity, carries in and for itself the expression of mental clearness; the opposite is the case with ugliness, and so forth.