Do unto others as you would have them do unto you, not forgetting to leave others be as you would have them leave you be.

Know thyself, or at least keep renewing the acquaintance.

At some point you must decide if you want to succeed or just be someone who was never to blame for anything going wrong.

Always telling the truth is no doubt better than always lying, although equally pathological.

If an artist has talent, he needs no other critic.

It is not only possible to be the person you pretend to be, but there is less effort involved.

There is in every artist's studio a scrap heap of discarded works in which the artist's discipline prevailed against his imagination.