We do not see nature with our eyes, but with our understandings and our hearts.

Deviation from Nature is deviation from happiness.

Never does nature say one thing and wisdom another.

The roaring of the wind is my wife and the stars through the window pane are my children.

Nature, in her blind thirst for life, has filled every possible cranny of the rotting earth with some sort of fantastic creature.

Nature takes no account of even the most reasonable of human excuses.

Only those within whose own consciousness the sun rise and set, the leaves burgeon and wither, can be said to be aware of what living is.

The visible marks of extraordinary wisdom and power appear so plainly in all the works of creation that a rational creature who will but seriously reflect on them cannot miss the discovery of a diety.

There is not so contemptible a plant or animal that does not confound the most enlarged understanding.

Thoreau gave an otherwise hidden passion and drew from woods and water the love affair with earth and sky he'd recorded in his journals.