When bad things happen to you—things that feel like your personal burden—why be upset? Remember our basic choice: either the universe has a plan, or it's just random atoms colliding. Either way, remember what we proved: the whole world is like one city. And what about your body—what is there to fear? Your mind, once it finds itself and knows its own strength, doesn't care whether this life flows smooth or rough. Your mind stays untouched. And remember everything else you've learned about pain and pleasure.
As for those things which among the common chances of the world happen unto thee as thy particular lot and portion, canst thou be displeased with any of them, when thou dost call that our ordinary dilemma to mind, either a providence, or Democritus his atoms; and with it, whatsoever we brought to prove that the whole world is as it were one city? And as for thy body, what canst thou fear, if thou dost consider that thy mind and understanding, when once it hath recollected itself, and knows its own power, hath in this life and breath (whether it run smoothly and gently, or whether harshly and rudely), no interest at all, but is altogether indifferent: and whatsoever else thou hast heard and assented unto concerning either pain or pleasure?