Be kind to everyone, and don't leave yourself out of the equation.
You won't be happy anywhere until you're happy somewhere.
To make the world a better place, see the world as a better place.
Be happy with what you have. Be excited about what you want.
Work may be your dominant thought, and joy an afterthought. But joy is your true purpose, and work the afterthought.
The people who are successful are those who are grateful for everything they have.