but in the higher there appears a new quality called consciousness which enables it to be attended with pain. The creatures cause pain by being born, and live by inflicting pain, and in pain they mostly die. In the most complex of all the creatures, Man, yet another quality appears, which we call reason, whereby he is enabled to foresee his own pain which henceforth is preceded with acute mental suffering, and to foresee his own death while keenly desiring permanence.