Nathaniel Hawthorne said this quote

It is the unspeakable misery of a life so false as his, that it steals the pith and substance out of whatever realities there are around us, and which were meant by Heaven to be the spirit’s joy and nutriment. To the untrue man, the whole universe is false—it is impalpable—it shrinks to nothing within his grasp. And he himself in so far as he shows himself in a false light, becomes a shadow, or, indeed, ceases to exist.