The only man who never makes mistakes is the man who never does anything.
Theodore Roosevelt
Every potter praises his pot, and all the more if it is cracked.
Spanish proverbs
To improve is to change; to be perfect is to change often.
Winston Churchill
Art is never finished, only abandoned.
Leonardo da Vinci
Anyone who has never made a mistake has never tried anything new.
Albert Einstein
An artist never really finishes his work, he merely abandons it.
Paul Valery
