Considered logically this concept is not identical with the totality of sense impressions referred to; but it is an arbitrary creation of the human (or animal) mind.
Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.
Our mind is all we’ve got. Not that it won’t lead us astray sometimes, but we still have to analyze things out within ourselves.
Knowledge can be communicated, but wisdom cannot. A man can find it, he can live it, he can be filled and sustained by it, but he cannot utter or teach it.
