Sigmund Freud

Man's most precious possession is the capacity for love and work.

The great task of man is to liberate himself from the illusions of his own mind.

The unconscious is the true psychical reality; in its innermost nature it is as much unknown to us as the reality of the external world.

Anatomy is destiny.

The voice of the intellect is a soft one, but it does not rest until it has gained a hearing.

The only unnatural sexual behavior is none at all.

Neurosis is the inability to tolerate ambiguity.

The more perfect a person is on the outside, the more demons they have on the inside.

The only person with whom you have to compare yourself is you in the past.

The first requisite of civilization is that of justice.

The psychical, whatever its nature may be, is itself unconscious.

The ego is first and foremost a bodily ego.

The interpretation of dreams is the via regia to the unconscious.

The unconscious is the larger circle which includes within itself the smaller circle of the conscious.

The tendency to aggression is an innate, independent, instinctual disposition in man.

The libido is the energy, regarded as a quantitative magnitude, of those instincts which have to do with all that may be comprised under the word 'love.'

Civilization began the first time an angry man cast a stone instead of a word.

The complete sexual repression of the Victorian age led to an unprecedented increase in hysteria and other neurotic disorders.

I consider myself to be a man of science, not a philosopher.

The more the parents are separated from their children, the more the children are separated from their parents.