Just as we might take Darwin as an example of the normal extraverted thinking type, the normal introverted thinking type could be represented by Kant. The one speaks with facts, the other relies on the subjective factor. Darwin ranges over the wide field of objective reality, Kant restricts himself to a critique of knowledge.

In the child, consciousness rises out of the depths of unconscious psychic life, at first like separate islands, which gradually unite to form a 'continent,' a continuous landmass of consciousness. Progressive mental development means, in effect, extension of consciousness.

For a young person, it is almost a sin, or at least a danger, to be too preoccupied with himself; but for the ageing person, it is a duty and a necessity to devote serious attention to himself.

Carl Jung Quotes