From the dawn of time, whenever humanity has wanted to know more, we have achieved it most effectively not by removing ourselves from the world to ponder and theorize, but rather by getting our hands dirty and making careful observations of real stuff. In short, we have learned primarily by tinkering.
Travel is the discovery of truth; an affirmation of the promise that human kind is far more beautiful than it is flawed. With each trip comes a new optimism that where there is despair and hardship, there are ideas and people just waiting to be energized, to be empowered, to make a difference for good.
In the first place, most princes apply themselves to the arts of war, in which I have neither ability nor interest, instead of to the good arts of peace. They are generally more set on acquiring new kingdoms by hook or by crook than on governing well those that they already have.