If you ask these malcontents for their opinion of the cheerful people just described—or even worse, of those Stoic optimists who go on at length about what a wonderful thing glass is—they are likely to respond with disparaging remarks: “Such people are clearly fools. They shouldn’t be satisfied with so little. They should want more and not rest content until they get it.” I would argue, though, that what is really foolish is to spend your life in a state of self-induced dissatisfaction when satisfaction lies within your grasp, if only you will change your mental outlook. To be able to be
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