Men go forth to marvel at the height of mountains, and the huge waves of the sea, the broad flow of the rivers, the vastness of the ocean, the orbits of the stars, and yet they neglect to marvel at themselves. Variant: Men go abroad to admire the heights of mountains, the mighty billows of the sea, the broad tides of rivers, the compass of the ocean, and the circuits of the stars, and pass themselves by.
The day was made for laziness, and lying on one's back in green places, and staring at the sky till its brightness forced one to shut one's eyes and go to sleep.
We have become great because of the lavish use of our resources ... But the time has come to inquire seriously what will happen when our forests are gone, when the coal, the iron, the oil and the gas are exhausted.
Nothing not built with hands of course is sacred.
But here is not a question of what's sacred;
Rather of what to face or run away from.
I'd hate to be a runaway from nature.
The same stream of life that runs through my veins night and day runs through the world and dances in rhythmic measures. It is the same life that shoots in joy through the dust of the earth in numberless blades of grass and breaks into tumultuous waves of leaves and flowers.
For many parts of Nature can neither be invented with sufficient subtlety, nor demonstrated with sufficient perspicuity, nor accommodated unto use with sufficient dexterity, without the aid and intervening of the mathematics, of which sort are perspective, music, astronomy, cosmography, architecture, engineery, and divers others.
Nature is no sentimentalist, - does not cosset or pamper us. We must see that the world is rough and surly, and will not mind drowning a man or a woman; but swallows your ship like a grain of dust. The cold, inconsiderate of persons, tingles your blood, benumbs your feet, freezes a man like an apple. The diseases, the elements, fortune, gravity, lightning, respect no persons.
I never had any other desire so strong, and so like covetousness, as that ... I might be master at last of a small house and a large garden, with very moderate conveniences joined to them, and there dedicate the remainder of my life to the culture of them and the study of nature.
The purpose of life is undoubtedly to know oneself. We cannot do it unless we learn to identify ourselves with all that lives. The sum-total of that life is God.