A delusion is something that people believe in despite a total lack of evidence.
Interpretation
A delusion is a belief held without evidence, often contrary to facts.
In this quote, Richard Dawkins highlights the nature of delusions as beliefs that persist in the absence of supporting evidence. Such delusions can serve as a commentary on human cognition and the tendency to believe in unfounded ideas, despite clear evidence to the contrary, which can have significant implications in various aspects of life, from personal beliefs to societal issues.
In practice
In a debate about pseudoscience, this quote can be used to emphasize the importance of evidence in forming beliefs.
No educated person believes the Adam and Eve myth nowadays, but it's surprising how many parents think that it's somehow fun to pass on this falsehood to their children...I would want to argue that the truth of evolution is more interesting and more poetic
If the history-deniers who doubt the fact of evolution are ignorant of biology, those who think the world began less than ten thousand years ago are worst than ignorant, they are the deluded to the point of perversity.
The population of the U.S. is nearly 300 million, including many of the best educated, most talented, most resourceful, humane people on earth. By almost any measure of civilised attainment, from Nobel prize-counts on down, the U.S. leads the world by miles.
When you make machines that are capable of obeying instructions slavishly, and among those instructions are 'duplicate me' instructions, then of course the system is wide open to exploitation by parasites.
Even if not a single fossil has ever been found, the evidence from surviving animals would still overwhelmingly force the conclusion that Darwin was right.
The bitter hatreds that now poison Middle Eastern politics are rooted in the real or perceived wrong of the setting up of a Jewish State in an Islamic region. In view of all that the Jews had been through, it must have seemed a fair and humane solution. Probably deep familiarity with the Old Testament had given the European and American decision-makers some sort of idea that this really was the historic homeland of the Jews.
Facts are simple and facts are straight. Facts are lazy and facts are late. Facts all come with points of view. Facts don't do what I want them to. Facts just twist the truth around. Facts are living turned inside out.
The growth of our knowledge is the result of a process closely resembling what Darwin called 'natural selection'; that is, the natural selection of hypotheses: our knowledge consists, at every moment, of those hypotheses which have shown their (comparative) fitness by surviving so far in their struggle for existence, a competitive struggle which eliminates those hypotheses which are unfit.
Men are not born saints with special gifts and privileges. They fight against the world, the flesh and the devil, and as they conquer, the spirit of Jesus begins to shine through with more clarity.
No method of procedure has ever been devised by which liberty could be divorced from local self-government. No plan of centralization has ever been adopted which did not result in bureaucracy, tyranny, inflexibility, reaction, and decline.
An American of the present day reading his Sunday newspaper in a state of lazy collapse is one of the most perfect symbols of the triumph of quantity over quality that the world has yet seen.
I condemn false prophets, I condemn the effort to take away the power of rational decision, to drain people of their free will - and a hell of a lot of money in the bargain. Religions vary in their degree of idiocy, but I reject them all. For most people, religion is nothing more than a substitute for a malfunctioning brain.
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