Never complain and never explain.
Be kind whenever possible. It is always possible.
It's always too early to quit.
Go for it now. The future is promised to no one.
If you're going through hell, keep going.
Well done is better than well said.
Without hard work, nothing grows but weeds.
Know or listen to those who know.
Expect problems and eat them for breakfast.
Be thine own palace, or the world's thy jail.
Work hard, use your common sense and don't be afraid to trust your instincts.