Anxiety in children is originally nothing other than an expression of the fact they are feeling the loss of the person they love.

By abolishing private property one deprives the human love of aggression.

Nature delights in making use of the same forms in the most various biological connections: as it does, for instance, in the appearance of branch-like structures both in coral and in plants, and indeed in some forms of crystal and in certain chemical precipitates.

Time spent with cats is never wasted.

In the small matters trust the mind, in the large ones the heart.

One might compare the relation of the ego to the id with that between a rider and his horse. The horse provides the locomotor energy, and the rider has the prerogative of determining the goal and of guiding the movements of his powerful mount towards it. But all too often in the relations between the ego and the id we find a picture of the less ideal situation in which the rider is obliged to guide his horse in the direction in which it itself wants to go.

A piece of creative writing, like a day-dream, is a continuation of, and a substitute for, what was once the play of childhood.