Why should any of these things that happen externally distract thee? Give thyself leisure to learn some good thing: cease roving to and fro.

Why should a man have any apprehension about the change and dissolution of all the elements? For it is according to nature, and nothing is evil which is according to nature.

Nature set a limit on sleep - as it did on eating and drinking. And youre over the limit. But not of working. There youre still below your quota. You dont love yourself enough. Or youd love your nature too and what it demands of you. People who love what they do wear themselves down doing it. They even forget to wash and eat.

The man who doesn't know what the universe is doesn't know where he lives.

Neither in writing nor in reading wilt thou be able to lay down rules for others before thou shalt have first learned to obey rules thyself.

It is a ridiculous thing for a man not to fly from his own badness, which is indeed possible, but to fly from other men's badness, which is impossible.

All things are in the act of change; thou thyself in ceaseless transformation and partial decay, and the whole universe with thee.