He must be able to hear them [the counter arguments] from persons who actually believe them; who defend them in earnest, and do their very utmost for them. He must know them in their most plausible and persuasive form; he… — John Stuart Mill Copy Share Image
![“He must be able to hear them [the counter arguments] from persons who actually believe them; who defend them in earnest, and do their very utmost for them. He must know them in their most plausible and persuasive form; he must feel the whole force of the difficulty which the true view of the…” quote by John Stuart Mill](https://sms4smile.com/quotes/img-quotes/df8/john-stuart-mill-477_able_he-must-be-able-to-hear-them-the-counter_1955293.jpg)