The unconsciousness of man is the consciousness of God.
 Henry David Thoreau, A Week on the Concord and Merrimack Rivers (1849). copy citation

Context

“A poem is one undivided unimpeded expression fallen ripe into literature, and it is undividedly and unimpededly received by those for whom it was matured. If you can speak what you will never hear, if you can write what you will never read, you have done rare things. The work we choose should be our own, God lets alone. The unconsciousness of man is the consciousness of God. Deep are the foundations of sincerity. Even stone walls have their foundation below the frost. What is produced by a free stroke charms us, like the forms of lichens and leaves. There is a certain perfection in accident which we never consciously attain.” source