"One is that you legislate according to natural selection, the other is that you don't. You have compassion, you try and help people. It's a fundamental clash between two people who happen to love each other, which complicates everything."

Next Quote

But some of these theories are so bold that they can clash with reality: they are the testable theories of science. And when they clash, then we know that there is a reality; something that can inform us that our ideas are mistaken.

— Karl Popper