the present Western civilization ... is dominated by the extravert viewpoint. There are plenty of reasons for this domination: extraverts are more vocal than introverts; they are more numerous, apparently in the ratio of three to one; and they are accessible and understandable, whereas the introverts are not readily understandable, even to each other, and are likely to be thoroughly incomprehensible to the extraverts.

[On Jung's theory of psychological types:] My mother, Katharine C. Briggs, introduced it into our family and made it a part of our lives. She and I waited a long time for someone to devise an instrument that would reflect not only one's preference for extraversion or introversion but one's preferred kind of perception and judgment as well. In the summer of 1942 we undertook to do it ourselves.

By developing individual strengths, guarding against weaknesses, and appreciating the strengths of other types, life will be more amusing, more interesting, and more of a daily adventure than it could possibly be if everyone were alike.

The visions of the INFJs tend to concern human welfare, and their contributions are likely to be made independent of a mass movement.

Extraverts ... cannot understand life until they have lived it. Introverts ... cannot live life until they understand it.

You psychologists focus on what is wrong with people; I want to focus on what is right and what could be right.

Whatever the circumstances of your life, the understanding of type can make your perceptions clearer, your judgements sounder, and your life closer to your heart's desire