The quote "If you live each day as if it was your last, someday you'll most certainly be right" is often attributed to Steve Jobs, but a quote posted on [LibQuotes](https://libquotes.com/steve-jobs/quote/lbo5d1e) suggests that Steve Jobs was himself quoting someone else:

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> When I was 17, I read a quote that went something like: "If you live each day as if it was your last, someday you'll most certainly be right."
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I tried Googling, but there are too many sites that simply attribute the quote to Steve Jobs

Is LibQuotes.com misquoting Steve Jobs? If not, who is Steve Jobs quoting?