Altruism, power/god complex, fear.
A quest to find the solutions to the problems that man, in general faces. Which leads to research and attempts to influence policy.
-----signature-----
"Goddammit, Swearengen, I don't trust you as far as I could th'ow you, but I enjoy the way you lie."
I don't typo often, but when I do, I blame Swype.