In 1958, Hunter S. Thompson was 20 years old, he wrote a letter to his friend Hume Logan in response to a request for life advice.

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What is truth to one may be disaster to another. I do not see life through your eyes, nor you through mine. If I were to attempt to give you specific advice, it would be too much like the blind leading the blind.

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From Letters of Note: An Eclectic Collection of Correspondence Deserving of a Wider Audience