I read Edutopia's HAPPINESS post and thought I'd offer one as well...

Hope and keeping a positive attitude

Appreciation for the good and bad

Perspective other than one's own

Persistence to the bitter end

Identity that is in constant flux

Never-ending love of the pursuit

Empathy for one's ego network


Sharing successes and failures with others

Why not create your own acrostic from H A P P I N E S S.