Probably it is; for an idea once received must run its course, unless it be superseded by another idea, in the reception of which volition is again exercised.

How do ideas originate?

They appear to be spiritual emanations from spiritual beings; thus, one man conveys to another the idea which is a very part of himself.

Is the intervention of a bodily presence necessary for the transmission of an idea?

By no means; ideas may be conveyed through picture or printed page; absent friends would appear to communicate ideas without the intervention of means; natural objects convey ideas, but, perhaps, the initial idea in this case may always be traced to another mind.

Then the spiritual sustenance of ideas is derived directly or indirectly from other human beings?

No; and here is the great recognition which the educator is called upon to make. God, the Holy Spirit, is Himself the supreme Educator of mankind.

How?

He openeth man’s ear morning by morning, to hear so much of the best as the man is able to bear.

Are the ideas suggested by the Holy Spirit confined to the sphere of the religious life?