He was the first who recognized natural right, and held that virtue and vice are inseparably united. He proclaimed the sovereignty of virtue, and the immutability of justice. He sought to delineate and enforce the practical duties of life. His great object was the elucidation of morals, and he was the first to teach ethics systematically, and from the immutable principles of moral obligation. Moral certitude was the lofty platform from which he surveyed the world, and upon which, as a rock, he rested in the storms of life. Thus he was a reformer and a moralist. It was his ethical doctrines which were most antagonistic to the age, and the least appreciated. He was a profoundly religious man, recognized Providence, and believed in the immortality of the soul. From the abyss of doubt, which succeeded the speculations of the first philosophers, he would plant grounds of certitude--a ladder on which he would mount to the sublime regions of absolute truth. He did not presume to inquire into the Divine essence, yet he believed that the gods were omniscient and omnipresent, that they ruled by the law of goodness, and that, in spite of their multiplicity, there was unity--a supreme intelligence that governed the world. Hence he was hated by the Sophists, who denied the certainty of arriving at the knowledge of God. From the comparative worthlessness of the body he deduced the immortality of the soul. With him, the end of life was reason and intelligence. He proved the existence of God by the order and harmony of nature, which belief was certain. He endeavored to connect the moral with the religious consciousness, and then he proclaimed his convictions for the practical welfare of society. In this light Socrates stands out the grandest personage of pagan antiquity,--as a moralist, as a teacher of ethics, as a man who recognized the Divine. [Sidenote: The mission of Socrates.] [Sidenote: The great aim of the Socratic method.]