William Lane Craig on the Meaning of LifeReasonable Faith (Wheaton: Crossway Books, 1994)
Other animals have instincts to guide them, but man has learned to ask questions. “Who am I?” man asks. “Why am I here? Where am I going?” Since the Enlightenment, when he threw off the shackles of religion, man has tried to answer these questions without reference to God. But the answers that came back were not exhilarating, but dark and terrible. “You are the accidental by-product of nature, a result of matter plus time plus chance. There is no reason for your existence. All you face is death.” Modern man thought that when he had gotten rid of God, he had freed himself from all that repressed and stifled him. Instead, he discovered that in killing God, he had also killed himself.