Man is as poor as he is, as limited as he is, as troubled as he is; yet there is nothing in this world which could not be accomplished by man if he only knew what thought can do. It is ignorance which keeps him from what he ought to accomplish. Man should know how to operate his thought, how to accomplish certain things, how to focus his mind on the object that should be accomplished. If he does not know then he has not made use of his mind but has lived like a machine.