To find out what is truly individual in ourselves, profound reflection is needed; and suddenly we realize how uncommonly difficult the discovery of individuality is.

The gigantic catastrophes that threaten us today are not elemental happenings of a physical or biological order, but psychic events. To a quite terrifying degree we are threatened by wars and revolutions which are nothing other than psychic epidemics. At any moment several million human beings may be smitten with a new madness, and then we shall have another world war or devastating revolution. Instead of being at the mercy of wild beasts, earthquakes, landslides, and inundations, modern man is battered by the elemental forces of his own psyche.

All true things must change and only that which changes remains true.

The unconscious is not a demoniacal monster, but a natural entity which, as far as moral sense, aesthetic taste, and intellectual judgment go, is completely neutral.It only becomes dangerous when our conscious attitude to it is hopelessly wrong. To the degree that we repress it, its danger increases.

Everything psychic is pregnant with the future.

When a Pueblo Indian does not feel in the right mood, he stays away from the men's council. When an ancient Roman stumbled on the threshold as he left the house, he gave up his plans for the day. This seems to us senseless, but under primitive conditions of life such an omen inclines one at least to be cautious. When I am not in full control of myself, my bodily movements may be under a certain constraint; my attention is easily distracted; I am somewhat absent-minded. As a result I knock against something, stumble, let something fall, or forget something.

Mistakes are, after all, the foundations of truth, and if a man does not know what a thing is, it is at least an increase in knowledge if he knows what it is not.