In the strident world of seventeenth-century philosophy, the mind-body problem was not a word puzzle that could be safely relegated to undergraduate … - Benedictus de Spinoza

After man has persuaded himself that all things which exist are made for him, he must in everything adjudge that to be of the greatest importance which is most useful to him, and he must esteem that to be of surpassing worth by which he is most beneficially affected. In this way he is compelled to form those notions by which he explains nature; such, for instance, as good, evil, order, confusion, heat, cold, beauty, and deformity, etc.; and because he supposes himself to be free, notions like those of praise and blame, sin and merit, have arisen.

The object of the idea constituting the human mind is the body

...To the extent that we are committed to the ideal of a secular society free of ecclesiastic influence and governed by toleration, liberty, and a conception of civic virtue; and insofar as we think of true religious piety as consisting in treating other human beings with dignity and respect, and regard the Bible simply as a profound work of human literature with a universal moral message, we are the heirs of Spinoza's scandalous treatise [Tractatus Theologico-Politicus].