The real difference between a man's scientific judgments about himself and the judgment of others about him is he has added sources of knowledge.

- Edward Thorndike

For origin and development of human faculty we must look to these processes of association in lower animals.

- Edward Thorndike

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 …

- Edward Thorndike

Just as the science and art of agriculture depend upon chemistry and botany, so the art of education depends upon physiology and psychology.

- Edward Thorndike

This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the cas…

- Edward Thorndike

So the animal finally performs in that situation only the fitting act.

- Edward Thorndike

Amongst the minds of animals that of man leads, not as a demigod from another planet, but as a king from the same race.

- Edward Thorndike

Nowhere more truly than in his mental capacities is man a part of nature.

- Edward Thorndike

The intellectual evolution of the race consists in an increase in the number, delicacy, complexity, permanence and speed of formation of such associa…

- Edward Thorndike