Taboo restrictions are distinct from religious or moral prohibitions. They are not based upon any divine ordinance, but may be said to impose themselves on their own account. They differ from moral prohibitions in that they fall into no system that declares quite generally that certain abstinences must be observed and gives reasons for that necessity.
Sigmund FreudThe voice of the intellect is a soft one, but it does not rest until it has gained a hearing.
Sigmund FreudConservatism, however, is too often a welcome excuse for lazy minds, loath to adapt themselves to fast changing conditions.
Sigmund Freud