Hobbes, Thomas
Whosoever looketh into himself and considereth what he doth when he does think, opine, reason, hope, fear, etc., and upon what grounds; he shall thereby read and know what are the thoughts and passions of all other men upon the like occasions. I say the similitude of passions, which are the same in all men, — desire, fear, hope, etc.; not the similitude of the objects of the passions, which are the things desired, feared, hoped, etc.: for these the constitution individual, and particular education, do so vary, and they are so easy to be kept from our knowledge, that the characters of man’s heart, blotted and confounded as they are with dissembling, lying, counterfeiting, and, erroneous doctrines, are legible only to him that searcheth hearts [compare this with apperception]. And though by men’s actions we do discover their design sometimes; yet to do it without comparing them with our own, and distinguishing all circumstances by which the case may come to be altered, is to decipher without a key, and be for the most part deceived, by too much trust or by too much diffidence, as he that reads is himself a good or evil man. Leviathan