Martin Luther King Jr. was a Baptist minister and a leading voice in the American civil rights movement. He urged people to confront injustice through nonviolent action and helped shape campaigns for racial equality. This line is widely attributed to him, but its exact wording and original source are uncertain. It is often circulated in a longer version that adds “if you can’t walk then crawl”; without a reliable source for this particular wording, it is best treated as an attribution rather than a confirmed quotation from a specific speech or work.
The message is simple: when circumstances limit what you can do, adapt your pace, but don’t give up on making progress. “Flying,” running, and walking offer vivid contrasts between dramatic achievement and modest, steady effort. The point is not that every step will be easy or that persistence guarantees quick success. It is that even a small action can keep a larger purpose alive. That idea resonates in struggles for social change as well as in personal setbacks, where the next step may matter more than a perfect plan. The words endure because they make perseverance feel practical: keep moving in whatever way you can.