His works discuss both ethical theory and practical advice, and Seneca stresses that both parts are distinct but interdependent. His "Letters to Lucilius" showcase Seneca's search for ethical perfection and “represent a sort of philosophical testament for posterity”. Seneca regards philosophy as a balm for the wounds of life. The destructive passions, especially anger and grief, must be uprooted, or moderated according to reason. He discusses the relative merits of the contemplative life and the active life, and he considers it important to confront one's own mortality and be able to face death. One must be willing to practice poverty and use wealth properly, and he writes about favours, clemency, the importance of friendship, and the need to benefit others. The universe is governed for the best by a rational providence, and this must be reconciled with acceptance of adversity.