This observation by Sol Lewitt certainly explains most creative impulses:
The best things of mankind are as useless as Amelia Earhart’s adventure. They are the things that are undertaken not for some definite, measurable result, but because someone, not counting the costs or calculating the consequences, is moved by curiosity, the love of excellence, a point of honor, the compulsion to invent or to make or to understand. In such persons mankind overcomes the inertia which would keep it earthbound forever in its habitual ways. They have in them the free and useless energy with which alone men surpass themselves.
An excerpt from the Journal of naturalist and transcendentalist Henry David Thoreau:
Jan. 21,1838. Such is beauty ever –– neither here nor there, now nor then –– neither in Rome nor in Athens, but wherever there is a soul to admire. If I seek her elsewhere because I do not find her at home, my search will prove a fruitless one.
Comedian and filmmaker Mike Birbiglia's "Six Tips for Making It...." are spot-on - here's the final one:
6. CLEVERNESS IS OVERRATED, AND HEART IS UNDERRATED
Plus, there are fewer people competing for heart, so you have a better chance of getting noticed. Sometimes people say, “One thing you have to offer in your work is yourself.” I disagree. I think it’s the only thing.