Your reputation is what you're perceived to be, Your character is what you really are
Being yourself; not acting. You therefore can function near your own level of competence. Satisfy you own expectations rather than those of others.
You are no better than anyone else and no one is better than you.
Failure is not fatal, but failure to change might be.
Sincerity may not help us make friends, but it will help us keep them.
The purpose is to help, to prevent, to correct, to improve, rather than to punish. Criticism is not meant to punish, but rather to correct something that is preventing better results. The only goal is improvement.