Philosophy is inadequate to understand the roots of human psychology, because self-reflection does not make us aware of the forces that drive most of our reactions to the environment. Rather, we are subject to inborn tendencies, which develop through the reciprocally influential forces of natural and sexual selection.
哲学不足以理解人类心理的根源，因为自我思考不能使我们知晓我们大部分对环境的反应的背后驱动力。相反，我们受天生倾向的控制，而天生倾向是通过自然和性选择的互惠影响力量发展出来的。