Spinza's Ethics, PART III. ON THE ORIGIN AND NATURE OF THE EMOTIONS, proposition 31 corollary > Corollary.—From the foregoing, and also from III. xxviii. it follows that everyone endeavours, as far as possible, to cause others to love what he himself loves, and to hate what he himself hates: as the poet says: "As lovers let us share every hope and every fear: ironhearted were he who should love what the other leaves." since on individual level truth and spreading do not correlate perfectly, neither they ever will on social level - if no game theory catastrophes preclude the attainment of that