«What we need is a technology of behaviour. We could solve our problems quickly enough if we could adjust the growth of the world's population as precisely as we adjust the course of a spaceship […] But a behavioural technology comparable in power and precision to physical and biological technology is lacking, and those who do not find the very possibility ridiculous are more likely to be frightened by it than reassured.»
«Freedom and dignity illustrate the difficulty. They are the possessions of the autonomous man of traditional theory […] A scientific analysis shifts both the responsibility and the achievement to the environment. […] Until these issues are resolved, a technology of behaviour will continue to be rejected, and with it possibly the only way to solve our problems.»
«By refusing to recognize them, the defenders of freedom and dignity encourage the misuse of controlling practices and block progress towards a more effective technology of behaviour.»