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Why has not Man a microscopic eye? For this plain reason, Man is not a Fly. Say what the use, were finer optics giv'n, T' inspect a mite, not comprehend the heav'n.

Alexander Pope, John Wilson Croker (1871). “The Works: Including Several Hundred Unpublished Letters, and Other New Materials”, p.363
Why has not Man a microscopic eye? For this plain reason, Man is not a Fly. Say what the use, were finer optics giv'n, T' inspect a mite, not comprehend the heav'n.