We should realize that an opinion is not easily formed unless a person says and hears the same things every day and practises them in real life. - Epictetus

Furthermore the true Cynic must know that he is sent as a Messenger from God to men, to show unto them that as touching good and evil they are in error; looking for these where they are not to be found, nor ever bethinking themselves where they are.

If you find yourself acting to impress others, or avoiding action out of fear of what they might think, you have left the path.

If a person gave your body to any stranger he met on is way, you would certainly be angry. And do you feel no shame in handing over your own mind to be confused and mystified by anyone who happens to verbally attack you?