In the US in the 1900's 60 % of people were employed on the farms. Today it's less than 1%. If you told people back then that this would happen they wouldn't have believed it. If you told them we would have therapy, massages and spas that played important parts in our lives they would've have believed us.
Trivers, pursuing his theory of the emotions to its logical conclusion, notes that in a world of walking lie detectors the best strategy is to believe your own lies. You can’t leak your hidden intentions if you don’t think they are your intentions. According to his theory of self-deception, the conscious mind sometimes hides the truth from itself the better to hide it from others. But the truth is useful, so it should be registered somewhere in the mind, walled off from the parts that interact with other people.
The obscurity, incredibility and obscenity, so conspicuous in many parts of it, would justly condemn the works of a modern writer. It contains a mixture of inconsistency and contradiction; to call which the word of God, is the highest pitch of extravagance: it is to attribute to the deity that which any person of common sense would blush to confess himself the author of.