Don't be didactic - don't write about poverty. Write about poor people. When you dramatize their lives and let life and characters be your inspiration, you will express the 'idea' dynamically and without preaching.
Robert McKeeWe realize we can't go around saying and doing what we're actually thinking and feeling. If we all did that, life would be a lunatic asylum. Indeed, that's how you know you're talking to a lunatic. Lunatics are those poor souls who have lost their inner communication and so they allow themselves to say and do exactly what they are thinking and feeling and that's why they're mad.
Robert McKeeWhen talented people write badly, it's generally for one of two reasons: Either they're blinded by an idea they feel compelled to prove of they're driven by an emotion they must express. When talented people write well, it is generally for this reason: They're moved by a desire to touch the audience.
Robert McKeeNight after night, through years of performing and directing, I've stood in awe of the audience, of its capacity for response. As if by magic, masks fall away, faces become vulnerable, receptive. Filmgoers do not defend their emotions, rather they open to the storyteller in ways even their lovers never know, welcoming laughter, tears, terror, rage, compassion, passion, love, hate--the ritual often exhausts them.
Robert McKee