The first thing we ought to know in life, is to be thankful.

Nick Vujicic said :

"I promise you that for every disability you have, you are blessed with more than enough abilities to overcome your challenges."

"Often we feel life is unfair. Hard times and circumstances can trigger self-doubt and despair. I understand that well. But the bible says, "Consider it pure joy, when you face trials of any kinds." That is a lesson i struggled many years to learn."

"You may fall down and feel as though you don't have the strength to get back up. I know the feeling. We all do. Life isn't always easy, but when we overcome challenges, we become stronger and more grateful for our opportunities.

"Adjustments are necessary along the way because life isn't rosy, but it is always worth living."

"I can't put a hand on your shoulder to reassure you, but i can speak from heart. However desperate your life may see, there is hope."

So... if a person like him can smile and be ridiculously happy, why can't we? :)