The only impossible journey is the one you never begin.

This line is credited to Tony Robbins nearly everywhere it appears — across motivational essays, quote collections, and image posts — and it even features verbatim on Robbins's own official social channels, yet we have not been able to anchor it to a primary source he authored: it does not surface in his major books (Unlimited Power, Awaken the Giant Within, Money: Master the Game) or in any documented seminar transcript or interview we reviewed. The book appearances we found are all recent third-party anthologies that repeat the attribution without an original citation, so they confirm popularity rather than provenance. We found no credible rival claimant and no documented earlier use by anyone else, so there is no basis to call it misattributed; the thematic kinship some readers note with older "begin the journey" aphorisms is just that — kinship, not a traceable earlier source. Fittingly for a coach who built a career on the power of taking the first step, the sentiment sits comfortably within Robbins's message, and it is broadly and consistently his in the public mind. On the evidence, this is a genuinely and widely attributed line that we simply cannot verify against a primary source.