Sons of Science ! For this reason are philosophers said to be envious, not that they grudged the truth to religious or just men, or to the wise; but to fools, ignorant and vicious, who are without self-control and benevolence, least they should be made powerful and able to perpetrate sinful things. For of such the philosophers are made accountable to God, and evil men are not admitted worthy of this wisdom. Know that this matter I call the stone; but it is also named the feminine of magnesia or the hen, or the white spittle, or the volatile milk , the incombustible oil in order that it may be hidden from the inept and ignorant who are deficient in goodness and self-control; which I have nevertheless signified to the wise by one only epithet, viz., the Philosopher's Stone . Include, therefore, and conserve in this sea, the fire and the heavenly bird, to the latest moment of his exit. But I deprecate ye all, Sons of Philosophy, on whom the great gift of this knowled...