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"What is internal is hidden from us." The future is hidden from us. But does the astronomer think like this when he calculates an eclipse of the sun?
If I see someone writhing in pain with evident cause I do not think: all the same, his feelings are hidden from me.
Ludwig Wittgenstein (26 April 1889 – 29 April 1951) was an Austrian-born philosopher who spent much of his life in England.
Biography information from Wikiquote
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