They are children to us in certain points of view.

They are playing with toys we have done with for whole-generations.
-- ------FOOTNOTE: The more I have observed and reflected, the more limited seems to me the field of action of the human will.

Every act of choice involves a special relation between the ego and the conditions before it.

But no man knows what forces are at work in the determination of his ego.

The bias which decides his choice between two or more motives may come from some unsuspected ancestral source, of which he knows nothing at all.