I use [Heraclitus' discovery of] enantiodromia for the emergence of the unconscious opposite in the course of time. This characteristic phenomenon practically always occurs when an extreme, onesided tendency dominates conscious life; in time an equally powerful counterposition is built up, which first inhibits the conscious performance and subsequently breaks through the conscious control.

The only important thing is to follow nature. A tiger should be a good tiger; a tree, a good tree. So people should be people. But to know what people are, one must follow nature and go alone, admitting the importance of the unexpected. Still, nothing is possible without love. . . . For love puts one in a mood to risk everything, and not to withhold important elements.

Your vision will be clearer only when you manage to see within your heart.

The self is defined psychologically as the psychic totality of the individual. Anything that a [person] postulates as being a greater totality than [oneself] can become a symbol of the self. For this reason the symbol of the self is not always as total as the definition would require.

I've realized that somebody who's tired and needs a rest, and goes on working all the same is a fool.

The continuing, direct operation of the Holy Ghost on those who are called to be God's children implies, in fact, a broadening process of incarnation. Christ, the son begotten by God, is the first-born who is succeeded by an ever-increasing number of younger brothers and sisters. There are, however, neither begotten by the Holy Ghost nor born of a virgin. . . . Their lowly origin (possibly from the mammals) does not prevent them from entering into a close kinship with God as their father and Christ as their brother.

There is no such thing as a pure extrovert or a pure introvert. Such a man would be in the lunatic asylum.