Traveling to see foreign lands and traveling to see other countries are two completely different things.Curious people always go out with the purpose of looking at the scenery, and only look at people from other countries by the way.And if you wish to be a traveling philosopher, you should reverse the order of these two purposes.Children observe things until they are mentally strong enough to study people.A grown man, on the other hand, studies his own kind first, and then, if time permits, sees things.Just because we don't know how to travel, it is illogical to say that traveling is useless.