My boy! Smoking is one of the greatest and cheapest enjoyments in life, and if you decide in advance not to smoke, i can only feel sorry for you.

In some place in my soul, in a very hidden corner, I am a fanatical Jew. I am very much astonished to discover myself as such in spite of all efforts to be unprejudiced and impartial. What can I do against it at my age?

Plaque was placed on 6 May 1977 at Bellevue (a house on the slopes of the Wienerwald) where the Freud family spent their summers.

When it happens that a person has to give up a sexual object, there quite often ensues an alteration of his ego which can only be described as a setting up of the object inside the ego, as it occurs in melancholia; the exact nature of this substitution is as yet unknown to us.

It is easy to see that the ego is that part of the id which has been modified by the direct influence of the external world.

One becomes gradually accustomed to a new realization of the nature of 'happiness': one has to assume happiness when Fate does not carry out all its threats simultaneously.

Sexuality is the key to the problem of the psychoneuroses and of the neuroses in general. No one who disdains the key will ever be able to unlock the door.