How do we prevent the occasional acceptance of faulty reasoning and erroneous beliefs from influencing our habits of thought more generally? Thinking straight about the world is a precious and difficult process that must be carefully nurtured. By attempting to turn our critical intelligence off and on at will, we risk losing it altogether, and thus jeopardize our ability to see the world clearly. Furthermore, by failing to fully develop our critical faculties, we become susceptible to the arguments and exhortations of those with other than benign intentions. In the words of Stephen Jay Gould, “When people learn no tools of judgement and merely follow their hopes, the seeds of political manipulation are sown.” As individuals and as a society, we should be less accepting of superstition and sloppy thinking, and should strive to develop those “habits of mind” that promote a more accurate view of the world.