"Having the energy to pursue our passions will always come if that's our wish. Most of who we are, what we do, and where we are going relates to our attitude. Being tired, bored, scared, or unhappy are decisions, nothing more"
My friends, love is better than anger. Hope is better than fear. Optimism is better than despair. So let us be loving, hopeful and optimistic. And we’ll change the world. - Jack Layton
Sums it up:
http://www.asofterworld.com/index.php?id=154