Children are completely egoistic; they feel their needs intensely and strive ruthlessly to satisfy them.
Sigmund FreudEvery normal person, in fact, is only normal on the average. His ego approximates to that of the psychotic in some part or other and to a greater or lesser extent.
Sigmund FreudThe pleasure of satisfying a savage instinct, undomesticated by the ego, is uncomparably much more intense than the one of satisfying a tamed instinct. The reason is becoming the enemy that prevents us from a lot of possibilities of pleasure.
Sigmund Freud