Paul Kurtz’s skepticism is so much more than debunking the supernatural or fact-checking dubious claims. It is a powerful tool used in the service of improving ourselves, the lives of others, our societies, and our planet. It is rooted in the Enlightenment tradition of Immanuel Kant, who encouraged us to “sapere aude,” or “dare to know.” We often focus on the “know” part of that phrase, as cliches abound on the importance of knowledge (“knowledge is power,” “knowledge is half the battle,” etc.). Yet, Kurtz’s skepticism also homes in on the value of daring, how seeking knowledge can not only give us the correct answer but can give us a better life. We should dare to know—with all of the successes and failures we’ll find along the way—because that’s what makes life worth living.