Take whatever cause for outward happiness you might have and take it within yourself, so that, if the sun should go out, you will not be any less happy; if the birds stop singing you will not be any less happy.

The greatest thing that will please God is that you maintain an attitude of unshakable joy.

Happiness is reverence for all life.

If it (the good circumstances) changes will you be able to keep onto your happiness just as much? Because if not then your happiness is really built on sand.

Feel that you are happy without any cause for happiness.

Those who walk, run, or slide downhill eagerly would rather not think about the long, hard climb back up the hill again.

Until you've tasted it [anything], you can't really know it.