“Nobody ever saw a dog make a fair and deliberate exchange of one bone for another with another dog. Nobody ever saw one animal by its gestures and natural cries signify to another, this is mine, that yours; I am willing to give this for that....But man has almost constant occasion for the help of his brethren, and it is in vain for him to expect it from their benevolence only. He will be more likely to prevail if he can interest their self-love in his favour, and show them that it is for their own advantage to do for him what he requires of them. Whoever offers to another a bargain of any kind, proposes to do this. Give me that which I want, and you shall have this which you want, is the meaning of every such offer; and it is in this manner that we obtain from one another the far greater part of those good offices which we stand in need of.”
“Descriptively, we can see in each person his own (weak) tendencies to grow toward self-actualization; and also descriptively, we can see his various (weak) tendencies toward regressing (out of fear, hostility, or laziness). [...] if a person could himself see all the likely consequences of growth and all the likely consequences of coasting or of regression, and if he were allowed to choose between them, he would always (in principle, and under 'good conditions') choose the consequences of growth and reject the consequences of regression. That is, the more one knows of the actual consequences of growth-choices and regression-choices, the more attractive become the growth-choices to practically any human being. And these are the actual choices he is prone to make if conditions are good, i.e., if he is allowed truly free choice so that his organism can express its own nature.”
Virulence appears in a new light which cannot but be alarming to humanity; unless nature, in her evolution down the ages (an evolution which, as we now know, has been going on for millions, nay, hundreds of millions of years), has finally exhausted all the possibilities of producing virulent or contagious diseases - which does not seem very likely.
Preconceived ideas are like searchlights which illumine the path of the experimenter and serve him as a guide to interrogate nature. They become a danger only if he transforms them into fixed ideas-this is why I should like to see these profound words inscribed on the threshold of all the temples of science: 'The greatest derangement of the mind is to believe in something because one wishes it to be so.'