Curiosity takes ignorance seriously - and is confident enough to admit when it's in the dark. It is aware of not knowing. And then it sets out to do something about it.
William James once made an acute point about the relationship between happiness and expectation. He argued that satisfaction with ourselves does not require us to succeed in every endeavour. We are not always humiliated by failing; we are humiliated only if we first invest our pride and sense of worth in a given achievement and then do not reach it.
If our lives are dominated by a search for happiness, then perhaps few activities reveal as much about the dynamics of this quest - in all its ardour and paradoxes - than our travels.
I am in general a very pessimistic person with an optimistic, day to day take on things. The bare facts of life are utterly terrifying. And yet, one can laugh. Indeed, one has to laugh precisely because of the darkness: the nervous laughter of the trenches.
He was a volatile mixture of confidence and vulnerability. He could deliver extended monologues on professional matters, then promptly stop in his tracks to peer inquisitively into his guest's eyes for signs of boredom or mockery, being intelligent enough to be unable fully to believe in his own claims to significance. He might, in a past life, have been a particularly canny and sharp-tongued royal advisor.
One of our major flaws, and causes of unhappiness, is that we find it hard to take note of appreciate and be grateful for what is always around us. We suffer because we lose sight of the value of what is before us and yearn, often unfairly, for the imagined attraction elsewhere.