philosophy of science: meaning and functions (Introduction)
The problem, I think, with DHW's explanation is that it is so damn broad that boredom and isolation seem to encompass everything. Oh, he did it for someone else, he was bored and lonely because doing something for someone else makes you feel good. Bleh
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What is the purpose of living? How about, 'to reduce needless suffering. It seems to me to be a worthy purpose.