Quote from : Twelve Angry Men Book

Nine of us now seem to feel that the defendant is innocent, but we're just gambling on probabilities. We may be wrong. We may be trying to return a guilty man to the community. No one can really know. But we have a reasonable doubt, and this is a safeguard that has enormous value in our system. No jury can declare a man guilty unless it's sure. We nine can't understand how you three are still so sure. Maybe you can tell us.