According to Diogenes Laërtius, Chrysippus wrote twelve works in 23 books on the Liar paradox ; seven works in 17 books on amphiboly ; and another nine works in 26 books on other conundrums. Source: Internet
Diogenes Laërtius, vii. 184 Chrysippus threw himself eagerly into the study of the Stoic system. Source: Internet
Diogenes Laërtius, vii. 180. The logical work by Chrysippus came to be neglected and forgotten. Source: Internet
Chrysippus compared evil to the coarse jest in the comedy ; for, just as the jest, though offensive in itself, improves the piece as a whole, "so too you may criticize evil regarded by itself, yet allow that, taken with all else, it has its use." Source: Internet
Chrysippus laid the greatest stress on the worth and dignity of the individual, and on the power of will. Source: Internet
Chrysippus' point is more abstract than Antipater's, and Galen quotes the passage as an example of an opinion contrary to his own. Source: Internet