Famous Mark Twain quote traced to 1990 book

The famous quote 'Twenty years from now you will be more disappointed by the things that you didn't do' is commonly attributed to Mark Twain, but researchers have found no evidence he wrote it. The earliest documented appearance is in H. Jackson Brown Jr.'s 1990 book P.S. I Love You, where it is credited to his mother, Sarah Frances Brown.

The Center for Mark Twain Studies classifies the passage among quotes falsely attributed to Twain. Despite the misattribution, the message about taking risks and avoiding regret remains popular. Its uncertain authorship serves as a reminder to evaluate ideas on their own merits rather than because of a famous name.

The quote urges readers to consider what they might regret not doing rather than focusing on immediate risks. The maritime imagery of sailing away from a safe harbour has given the passage emotional force, but readers should note the attribution to Twain is not verified.