at the same time that what has once changed will never exist again in the infinite duration of time. But thou, in what a brief space of time is thy existence? And why art thou not content to pass through this short time in an orderly way? What matter and opportunity for thy activity art thou avoiding? For what else are all these things, except exercises for the reason, when it has viewed carefully and by examination into their nature the things which happen in life? Persevere then until thou shalt have made these things thy own, as the stomach which is strengthened makes all things its own, as the blazing fire makes flame and brightness out of everything that is thrown into it.
Let it not be in any man’s power to say truly of thee that thou art not simple or that thou are not good; but let him be a liar whoever shall think anything of this kind about thee; and this is altogether in thy power. For who is he that shall hinder thee from being good and simple? Do thou only determine to live no longer, unless thou shalt be such. For neither does reason allow thee to live, if thou art not such.