Seneca

“ You do not afford virtue a solid immoveable base if you bid it stand on what is unsteady: and what can be so unsteady as dependence on mere chance, and the vicissitudes of the body and of those things which act on the body? How can such a man obey God and receive everything which comes to pass in a cheerful spirit, never complaining of fate, and putting a good construction upon everything that befalls him, if he be agitated by the petty pin-pricks of pleasures and pains? ”

“ On the other hand, he who grumbles and complains and bemoans himself is nevertheless forcibly obliged to obey orders, and is dragged away, however much against his will, to carry them out: yet what madness is it to be dragged rather than to follow? as great, by Hercules, as it is folly and ignorance of one's true position to grieve because one has not got something or because something has caused us rough treatment, or to be surprised or indignant at those ills which befall good men as well as bad ones, I mean diseases, deaths, illnesses, and the other cross accidents of human life. ”

“ Even the joy which arises from virtue, although it be a good thing, yet is not a part of absolute good, any more than cheerfulness or peace of mind, which are indeed good things, but which merely follow the highest good, and do not contribute to its perfection, although they are generated by the noblest causes. ”

“ A man cannot be a good protector of his country, a good avenger of her wrongs, or a good defender of his friends, if he be inclined to pleasures. Let the highest good, then, rise to that height from whence no force can dislodge it, whither neither pain can ascend, nor hope, nor fear, nor anything else that can impair the authority of the "highest good." ”