The Republic by Plato Part 6 Page 36

that, under such adverse circumstances, he will be easily induced to listen?

Far otherwise.

And even if there be some one who through inherent goodness or natural reasonableness has had his eyes opened a little and is humbled and taken captive by philosophy, how will his friends behave when they think that they are likely to lose the advantage which they were hoping to reap from his companionship? Will they not do and say anything to prevent him from yielding to his better nature and to render his teacher powerless, using to this end private intrigues as well as public prosecutions?

There can be no doubt of it.

And how can one who is thus circumstanced ever become a philosopher?

Impossible.