[efferval]

Also "On Tranquility of Mind," and if you're willing to put the time "Letters from a Stoic."

One thing I do find a little overdone in the Stoics is the constant focus on death. There's a great recent book about Montaigne called "How to Live" and I think it does a great job of describing how Montaigne took the best parts of Stoicism but also created his own humanistic take on living.