two unnatural circumstances, external, and internal, undisturbed leisure and great intellect, happen to coincide in the same person, it is a great piece of fortune; and if the fate is so far favorable, a man can lead the higher life, the life protected from the two opposite sources of human suffering, pain and boredom, from the painful struggle for existence, and the incapacity for enduring leisure (which is free existence itself)—evils which may be escaped only by being mutually neutralized.