I'm motivated by the desire for something better for myself, my family, my friends, and anyone else who is dissatisfied with a current situation, person or whatever. Not simply a desire for a change in location or financial circumstance, but a desire for a positive life change.
I'm motivated to help make the world better because I am unhappy with it, and would like a world wonderful, happy, and peaceful for everyone. The idea of a world like that coming to life motivates me. ^_^
I'm motivated to be a better person, yet at the same time be myself, and to make the world a better place.
Something my mum always tells me is, "Why bother doing something, if you're not gonna put in your very best?" That's something that really motivates me to put in 110% no matter what I do :)