To be existential is to have those dark nights of the soul when the loneliness of existence becomes transparent and the structure of our confidence lies shattered around us. To be existential is to wrestle most fully with the jagged awareness of one’s own finitude, with the thunderbolt fact that I will die and that my death will be my own, experienced by no one else. To be existential is to recognize that in the face of all these somber truths, we must act…we must take responsibility for our lives; we must create the world anew.

George Cotkin, Existential America (Submitted by calvinmarkus)