Preach not to others what they should eat but eat as becomes you and be silent.
Don't explain your philosophy. Embody it.
Appear to know only this - never to fail nor fall.
One that desires to excel should endeavor in those things that are in themselves most excellent.
Keep silence for the most part, and speak only when you must, and then briefly.
There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will.