Thoreau writes in his journal:
How meanly and miserably we live for the most part! We escape fate continually by the skin of our teeth, as the saying is. We are practically desperate. But as every mean, in respect to material wealth, aims to become independent or wealthy, so, in respect to our spirits and imagination, we should have some spare capital and superfluous vigor, have some margin and leeway in which to move. What kind of gift is life unless we have spirits to enjoy it and taste its true flavor? if, in respect to spirits, we are to be forever cramped and in debt? In our ordinary estate we have not, so to speak, quite enough air to breathe, and this poverty qualifies our piety; but we should have more than enough and breathe it carelessly. Poverty is the rule. We should first of all be full of vigor like a strong horse, and beside have the free and adventurous spirit of his driver; i.e., we should have a reserve of elasticity and strength that we may at anytime be able to put ourselves at the top of our speed and go beyond our ordinary limits, just as an invalid hires a horse. Have the gods sent us into this world,—to this muster,—to do chores, hold horses, and the like, and not given us any spending money?