What it made the 'uomo different from other species has been the ability to walk. In poche words, it seems that the need to walk on two legs is earlier than the build tools with hands.
the rest, l’uomo It has always been a great walker, since the beginning of his history. He moved constantly and, with single force of the legs, He managed to scour all the far corners of the Earth. They, then, l’be men is somehow linked to need of walk in world physical with the body, even more necessary for the 'uomo is walk with thought and consciousness in the worlds that belong to knowledge, all’ethics, a spirituality.
Then, no matter which way do we go or if, paradoxically, back to square one. What matters is to begin to take steps… Even if we were to return at the same point, We would go back in a different way, we would ourselves "different". Although it is not necessary to plan the whole journey, we still need someone from time to time show us the way. Our guides are the giants of the past, that allow us to get away because we can trust the paths that have come before us. That's not to say, but, that we have to limit ourselves to repeat their way passively, without any involvement interior.