Right, and that's where I diverge from Hume. Together with the Stoics, the Epicureans, and modern authors like Philippa Foot, and I don't think there is a divide between is and ought, and think instead that ethics is a type of reasoning about empirical facts. Those are facts derived from human nature, from what objectively improves or hampers human flourishing. So while ethics is not reduced to just a collection of facts (a la Sam Harris, if you will), it is grounded in biological and cultural facts.