It doesn't hurt me unless I interpret its happening as harmful to me. I can choose not to.

Retire into thyself. The rational principle which rules has this nature, that it is content with itself when it does what is just, and so secures tranquility.

Most of what we say and do is not essential. If you can eliminate it, you'll have more time, and more tranquillity. Ask yourself at every moment, 'Is this necessary?'

The passing minute is every man's equal possession but what has once gone by is not ours.

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.

Nature which governs the whole will soon change all things which you see, and out of their substance will make other things and again other things... in order that the world may be ever new.

A man should remove not only unnecessary acts, but also unnecessary thoughts, for then superfluous activity will not follow.