Well, if you're not religious then any foundation must be arbitrary. With no religious presence, the universe has no fundamental meaning or purpose. Therefore, there is no underlying truth or morality that grounds our existence or any other being's existence.
As to why the capability to accumulate knowledge is my ultimate goal, one would turn to my belief that knowledge is the ultimate goal. In essence, I believe that knowledge is something which is unequivocally good in every and all instances. The choices we make with that knowledge are our own, but knowledge in and of itself is purely positive -- one of the few things that I think are. Therefore the pursuit of knowledge is a good and noble endeavor. As Asimov says, "[t]here is a single light of science, and to brighten it anywhere is to brighten it everywhere."
As to why the capability to accumulate knowledge is my ultimate goal, one would turn to my belief that knowledge is the ultimate goal. In essence, I believe that knowledge is something which is unequivocally good in every and all instances. The choices we make with that knowledge are our own, but knowledge in and of itself is purely positive -- one of the few things that I think are. Therefore the pursuit of knowledge is a good and noble endeavor. As Asimov says, "[t]here is a single light of science, and to brighten it anywhere is to brighten it everywhere."