https://en.wikisource.org/wiki/Moral_letters_to_Lucilius/Letter_65
>18. The wise man, the seeker after wisdom, is bound closely, indeed, to his body, but he is an absentee so far as his better self is concerned, and he concentrates his thoughts upon lofty things. Bound, so to speak, to his oath of allegiance, he regards the period of life as his term of service. He is so trained that he neither loves nor hates life; he endures a mortal lot, although he knows that an ampler lot is in store for him. 19. Do you forbid me to contemplate the universe? Do you compel me to withdraw from the whole and restrict me to a part? May I not ask what are the beginnings of all things, who moulded the universe, who took the confused and conglomerate mass of sluggish matter, and separated it into its parts? May I not inquire who is the Master-Builder of this universe, how the mighty bulk was brought under the control of law and order, who gathered together the scattered atoms, who separated the disordered elements and assigned an outward form to elements that lay in one vast shapelessness? Or whence came all the expanse of light? And whether is it fire, or something even brighter than fire?[12] 20. Am I not to ask these questions? Must I be ignorant of the heights whence I have descended? Whether I am to see this world but once, or to be born many times? What is my destination afterwards? What abode awaits my soul on its release from the laws of slavery among men? Do you forbid me to have a share in heaven? In other words, do you bid me live with my head bowed down? 21. No, I am above such an existence; I was born to a greater destiny than to be a mere chattel of my body, and I regard this body as nothing but a chain[13] which manacles my freedom. Therefore, I offer it as a sort of buffer to fortune, and shall allow no wound to penetrate through to my soul. For my body is the only part of me which can suffer injury. In this dwelling, which is exposed to peril, my soul lives free. 22. Never shall this flesh drive me to feel fear, or to assume any pretence that is unworthy of a good man. Never shall I lie in order to honour this petty body. When it seems proper, I shall sever my connexion with it. And at present, while we are bound together, our alliance shall nevertheless not be one of equality; the soul shall bring all quarrels before its own tribunal. To despise our bodies is sure freedom.