I do not feel called upon to account for it.

I do not know that I am required to account for it." ...

"A man will come to me and say, Can you account for this?
Can you account for that?
Now he expects me to tell him all about everything, just as though I was present at the beginning of Nature, and knew all its manifestations.

If I cannot do it, he will not admit my plea of ignorance;--he will not admit the propriety of my saying, I do not know." He is not bound to explain either the past or the future: "What went before and what will follow me I regard as two black impenetrable curtains, which hang down at the two extremities of human life, and which no living man has yet drawn aside....

A deep silence reigns behind this curtain; no one once within will answer those he has left without; all you can hear is a hollow echo of your question, as if you shouted into a chasm."[269] And can a mind that is capable of writing thus be content to discard Religion from his thoughts on the sorry pretext that he is not bound to account for the phenomena of Nature?
One would expect at least a thoughtful, serious, and earnest spirit, even were it a spirit of doubt, in one surrounded with such solemn mysteries, gazing on these black impenetrable curtains, listening to the hollow echo from that awful chasm: nay, that seriousness might be expected to deepen into sadness, too intensely real to be soothed by the plea of ignorance, or assuaged otherwise than by the light of truth.