The habit of being happy enables one to be freed, or largely freed, from the domination of outward conditions.

There is no duty we so much underrate as the duty of being happy. By being happy we sow anonymous benefits upon the world.

Not being happy really is my fear.

The world is so full of a number of things, I'm sure we should all be as happy as kings

Most people would rather be certain they're miserable, than risk being happy.

Being happy is a matter of personal taste.