Respect yourself and others will respect you.
To know what is the right thing to do and not do it is the greatest cowardice.
Don't curse the darkness, light a candle.
When a person should be spoken with, and you don't speak with them, you lose them. When a person shouldn't be spoken with and you speak to them, you waste your breath. The wise do not lose people, nor do they waste their breath.
Even four harnessed horses cannot bring imprudent words back into the mouth.
In your promises cleave to what is right, And you will be able to fulfill your word.