On a random internet search I discovered Happy Quotes. My favorite is the first one, the others are in no particular order:
It’s not what you’ve got, it’s what you use that makes a difference.
You can have everything in life you want, if you will just help other people get what they want.
Apparently there is nothing that cannot happen today.
Always do right. This will gratify some people and astonish the rest.
You will never be happier than you expect. To change your happiness, change your expectation.
The best way to pay for a lovely moment is to enjoy it.
Be happy. It’s one way of being wise. - Sidonie Gabrielle
You just have to do your own thing, no matter what anyone says. It’s your life. - Ethan Embry