The unexamined life is not worth living.
That pearl of wisdom has been attributed to Socrates and Plato. What we know about Socrates comes from his pupil Plato because the itinerant teacher never wrote anything down.
Anyway, the exact quote goes something like “a life without introspection, self-reflection and critical thought is meaningless." At least, that’s what I’ve heard from folks who know more ancient Greek than I know—which is to say, any at all.
Anyway, if Socrates and Plato knew about cycling, they might’ve added it to their list of what makes a life worthwhile.