Have the wisdom to know what cannot be changed, and the strength to change what can.

Whoever is going to listen to the philosophers needs a considerable practice in listening.

Things themselves don't hurt or hinder us. Things simply are what they are. How we view these things is another matter.People think what they will think; it is of no concern to us.

Does a man reproach thee for being proud or ill-natured, envious or conceited, ignorant or detracting? Consider with thyself whether his reproaches are true. If they are not, consider that thou art not the person whom he reproaches, but that he reviles an imaginary being, and perhaps loves what thou really art, though he hates what thou appearest to be.

No one who is in a state of fear or sorrow or tension is free, but whosoever is delivered from sorrows or fears or anxieties is at the same time delivered from servitude.

If a person had delivered up your body to some passer-by, you would certainly be angry. And do you feel no shame in delivering up your own mind to any reviler, to be disconcerted and confounded?

Two principles we should always have ready — that there is nothing good or evil save in the will; and that we are not to lead events, but to follow them.