How can one forbid the many evils in this time?

Question:
The questioner says: There are many evils in this time, so how can one forbid them? Because if a person goes to a city, he finds many young people immersed in evils. So how is he required to forbid them?

Answer:
He is required to forbid them to the best of his ability. If he has authority, he must forbid them with his hand. If he does not have authority, he forbids them with his tongue: he clarifies, admonishes, reminds, commands what is right, forbids what is wrong, and conveys this prohibition to the rulers. He should not remain silent while he is able to forbid with his tongue. If he cannot forbid with his tongue, he forbids with his heart: he hates the evil, detests the evil, and stays away from the evil and its people. Yes.