My core belief is that we all own ourselves. I belong to me and you belong to you. If you believe in self-ownership, certain forms of human behavior are either right or wrong. For example, murder is wrong because it violates private property, that is, my private property, my self-ownership. Rape is wrong.
Theft is wrong.
If you start with the basic premise of self-ownership, then certain absolutes of necessity follow. If it is wrong for me to take your money by force to give to a poor person, then the same is also wrong for government. I cannot give government any rights that I do not have. I do not have the right to steal from you, so I cannot give government that right either. Natural law undergirds my philosophical view, and I try to conduct my personal life that way.