Translation help

出来る限り笑おう。
Laugh as much as you can. (as much as possible)
いつも笑おう。
Always laugh.
それは自分のためにできるたった一つの素敵なこと、誰かのためにもできる最高のこと。
It's one thing that is wonderful for yourself, and a great thing to do for anyone.

Something like that. I would sum it up the the power of laughter. It's a great part of being human.
 
Very cool. Thanks for the translation. A student left it on my desk, so I was curious (Can't read kanji)