"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."
"The fourfold root of the principle of sufficent reason is "Anything perceived has a cause. All conclusions have premises. All effects have causes. All actions have motives."
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Source: Arthur Schopenhauer (2016). “101 Facts of life”, p.53, Publishdrive
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