What then? Should we use such things carelessly? In no way: for this on the other hand is bad for the faculty of the will, and consequently against nature; but we should act carefully because the use is not indifferent, and we should also act with firmness and freedom from perturbations because the material is indifferent. For where the material is not indifferent, there no man can hinder me or compel me. Where I can be hindered and compelled, the obtaining of those things is not in my power, nor is it good or bad; but the use is either bad or good, and the use is in my power. But it is difficult to mingle and to bring together these two things—the carefulness of him who is affected by the matter (or things about him), and the firmness of him who has no regard for it; but it is not impossible: and if it is, happiness is impossible. But we should act as we do in the case of a voyage. What can I do? I can choose the master of the ship, the sailors, the day, the opportunity. Then comes a storm. What more have I to care for? for my part is done. The business belongs to another, the master. But the ship is sinking—what then have I to do? I do the only thing that I can, not to be drowned full of fear, nor screaming nor blaming God, but knowing that what has been produced must also perish: for I am not an immortal being, but a man, a part of the whole, as an hour is a part of the day: I must be present like the hour, and past like the hour. What difference then does it make to me how I pass away, whether by being suffocated or by a fever, for I must pass through some such means.