cerning the entrance of knowledge into the human mind need not here be discussed.
It follows that the man who wishes to gain much knowledge must guard his senses from harm, and must sharpen them, so that during the few days of life they may do as much as is possible to help man establish a rational religion for his guidance. The foundation of human knowledge is derived from the direct action of the senses.
**The Sixth Sense.** Important as are the senses in adding knowledge to man, yet it must be admitted that they recognize without help only a very small part of the universe. Our universe is infinite in its variety of expression--of that man feels certain,--and it could hardly be expected, therefore, that man, who admittedly is yet far from perfection, should be able to know, even with the greatest aid, all of the universe.
The truth that an immeasurable part of the universe lies outside of human experience, is borne in upon every thinking man. In recent times, the developments of scienc