"The ideologies of the super-tribes exercised absolute power over all individual minds under their sway. In civilized regions the super-tribes and the overgrown natural tribes created an astounding mental tyranny. In relation to his natural tribe, at least if it was small and genuinely civilized, the individual might still behave with intelligence and imagination. Along with his actual tribal kinsmen he might support a degree of true community unknown on Earth. He might in fact be a critical, self-respecting and other-respecting person. But in all matters connected with the super-tribes, whether national or economic, he behaved in a very different manner. All ideas coming to him with the sanction of nation or class would be accepted uncritically and with fervor by himself and all his fellows. As soon as he encountered one of the symbols or slogans of his super-tribe he ceased to be a human personality and became a sort of de-cerebrate animal, capable only of stereotyped reactions. In extreme cases his mind was absolutely closed to influences opposed to the suggestion of the super-tribe. Criticism was either met with blind rage or actually not heard at all. Persons who in the intimate community of their small native tribe were capable of great mutual insight and sympathy might suddenly, in response to tribal symbols, be transformed into vessels of crazy intolerance and hate directed against national or class enemies. In this mood they would go to any extreme of self-sacrifice for the supposed glory of the super-tribe. Also they would show great ingenuity in contriving means to exercise their lustful vindictiveness upon enemies who in favorable circumstances could be quite as kindly and intelligent as themselves."