Book 2
2.19
And they are angry with friends, if they neither speak well of nor treat them well, and in an even greater degree, if they do the opposite. And if they fail to perceive that they want something from them, as PlexippusPlexippus was the uncle of Meleager. The allusion is obscure. It may refer to Meleager giving the skin of the Calydonian boar to Atalanta, which his uncle wanted. One of Antiphon's tragedies was named Meleager (T.G.F. p.792). in Antiphon's tragedy reproached Meleager; for failure to perceive this is a sign of slight; since, when we care for people, these things are noticed.Literally, for the things which (= the persons whom) one respects, do not escape notice.
2.20
And they are angry with those who rejoice, or in a general way are cheerful when they are unfortunate; for this is an indication of enmity or slight. And with those who do not care if they pain them; whence they are angry with those who bring bad news.
2.21
And with those who listen to the tale of their faults, or look on them with indifference, for they resemble slighters or enemies;