If you like a person you say 'let's go into business together.' Man is a social animal after all, but such partnerships are fraught with danger.
Growth and fulfillment come from abandoning old practices and embracing new ones.
Your life only gets better when you get better.
Describe your product in terms of what it does not in terms of what it is.
Never assume you understand. Ask the questions.
You have to put in many, many, many tiny efforts that nobody sees or appreciates before you achieve anything worthwhile.