But one thing about human beings puzzles me the most is their conscious effort to be connected with the object of their affection even if it kills them slowly within.

It might be said of psychoanalysis that if you give it your little finger it will soon have your whole hand.

Sexual morality - as society in its extreme form, the American, defines it - is contemptible. I advocate an incomparably freer sexual life.

The idea of men's receiving an intimation of their connection with the world around them through an immediate feeling which is from the outset directed to that purpose sounds so strange and fits in so badly with the fabric of our psychology that one is justified in attempting to discover a psycho-analytic - that is, a genetic - explanation of such a feeling.

It is a mistake to believe that science consists in nothing but conclusively proved propositions, and it is unjust to demand that it should. It is a demand made by those who feel a craving for authority in some form to replace the religious catechism by something else, even a scientific one.

Homosexuality is assuredly no advantage, but it is nothing to be ashamed of, no vice, no degradation; it cannot be classified as an illness; we consider it to be a variation of the sexual function, produced by a certain arrest of sexual development. Many highly respectable individuals of ancient and modern times have been homosexuals, several of the greatest men among them (Plato, Michelangelo, Leonardo da Vinci, etc.). It is a great injustice to persecute homosexuality as a crime--and a cruelty, too. If you do not believe me, read the books of Havelock Ellis.

The reproaches against science for not having yet solved the problems of the universe are exaggerated in an unjust and malicious manner; it has truly not had time enough yet for these great achievements. Science is very young--a human activity which developed late.