Human beings are accustomed to think of intellect as the power of having and controlling ideas and of ability to learn as synonymous with ability to have ideas. But learning by having ideas is really one of the rare and isolated events in nature.

From the lowest animals of which we can affirm intelligence up to man this type of intellect is found.

Dogs get lost hundreds of times and no one ever notices it or sends an account of it to a scientific magazine.

When, instead of merely associating some act with some situation in the animal way, we think the situation out, we have a set of particular feelings of its elements.