In him, more than in any modern thinker, there are exhibited complete loyalty to the essential element in the Hebraic tradition ultimate and self-sufficing Being as the standard of all human thought and action with perpetua- tion of the Greek theory of knowledge and its exaltation of reason over experience, together with enthusiastic adherence to the new scientific view of nature. Thus he thought to obtain from the very heart of the new science aconclusive demonstra- tion of the perfection of Being through which the human soul can alone obtain absolute security and peace. Ascientific com- prehension was to give, in full reality, by rational means, that assurance and regulation of life that non-rational religions had pretended to give.