No law can be sacred to me but that of my nature. Good and bad are but names very readily transferable to that or this; the only right is what is after my constitution; the only wrong is what is against it.
This is the fairest picture on our planet, the most enchanting to look upon, the most satisfying to the eye and spirit. To see the sun sink down, drowned in his pink and purple and golden floods, and overwhelm Florence with tides of color that make all the sharp lines dim and faint and turn the solid city to a city of dreams, is a sight to stir the coldest nature, and make a sympathetic one drunk with ecstasy.
Nature never deserts the wise and pure; no plot so narrow, be but nature there; no waste so vacant, but may well employ each faculty of sense, and keep the heart awake to love and beauty.
[T]hro this Air, this Ocean, and this Earth, All Nature quick, and bursting into birth. Above, how high progressive life may go? Around how wide? how deep extend below? Vast Chain of Being! which from God began, Ethereal Essence, Spirit, Substance, Man, Beast, Bird, Fish, Insect! what no Eye can see, No Glass can reach! from Infinite to Thee! From Thee to Nothing.... From Natures Chain whatever Link you strike, Tenth, or ten thousandth, breaks the chain alike.... All are but parts of one stupendous Whole: Whose Body Nature is, and God the Soul.
From the oyster to the eagle, from the swine to the tiger, all animals are to be found in men and each of them exists in some man, sometimes several at the time. Animals are nothing but the portrayal of our virtues and vices made manifest to our eyes, the visible reflections of our souls. God displays them to us to give us food for thought.
The wheels and springs of man are all set to the hypothesis of the permanence of nature. We are not built like a ship to be tossed, but like a house to stand.
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.
Many of the earth's habitats, animals, plants, insects and even micro-organisms that we know to be rare may not be known at all by future generations. We have the capability and the responsibility to act; we must do so before it is too late.
Reason must approach nature with the view, indeed, of receiving information from it, not, however, in the character of a pupil, who listens to all that his master chooses to tell him, but in that of a judge, who compels the witnesses to reply to those questions which he himself thinks fit to propose. To this single idea must the revolution be ascribed, by which, after groping in the dark for so many centuries, natural science was at length conducted into the path of certain progress.