In the last analysis the entire field of psychology may reduce to biological electrochemistry.

Just as a satisfaction of instinct spells happiness for us, so severe suffering is caused us if the external world lets us starve, if it refuses to sate our needs. One may therefore hope to be freed from a part of one's sufferings by influencing the instinctual impulses.

Religious illusion must bow to scientific truth. It is in total error about the nature of the true world. Only science is not an illusion.

The liberty of the individual is no gift of civilization. It was greatest before there was any civilization, though then, it is true, it had for the most part no value, since the individual was scarcely in a position to defend it. The development of civilization imposes restrictions on it, and justice demands that no one shall escape those restrictions.

We know that the great majority of people have a strong need for authority which it can admire, to which it can submit, and which dominates and sometimes even ill-treats it.

The communal life of human beings had . . . a two-fold foundation: the compulsion to work, which was created by external necessity, and the power of love.

The news that reaches your consciousness is incomplete and often not to be relied on.... Turn your eyes inward, look into your own depths, learn first to know yourself!