I found this quote from Blaise Pascal to be somewhat reflective of the atheists, humanists and agnostics over the years. It really describes the skeptic in general, take a read...
"I know not who sent me into the world, nor what the world is, nor what I myself am. I am terribly ignorant of everything. I know not what my body is, nor my senses, nor my soul and that part of me which thinks what I say, which reflects upon itself as well as upon all external things, and has no more knowledge of itself than of them.
I see the terrifying immensity of the universe which surrounds me, and find myself limited to one corner of this vast expanse, without knowing why I am set down here rather than elsewhere, nor why the brief period appointed for my life is assigned to me at this moment rather than another in all the eternity that has gone before and will come after me. On all sides I behold nothing but infinity, in which I am a mere atom, a mere passing shadow that returns no more. All I know is that I must soon die, but what I understand least of all is this very death which I cannot escape.
As I know not whence I come, so I know not whither I go. I only know that on leaving this world I fall for ever into nothingness or into the hands of a wrathful God, without knowing to which of these two states I shall be everlastingly consigned. Such is my condition, full of weakness and uncertainty. From all this I conclude that I ought to spend every day of my life without seeking to know my fate. I might perhaps be able to find a solution to my doubts; but I cannot be bothered to do so, I will not take one step towards its discovery."
Blaise Pascal, Pensees