My scientific work is motivated by an irresistible longing to understand the secrets of nature and by no other feeling. My love for justice and striving to contribute towards the improvement of human conditions are quite independent from my scientific interests.
After you have exhausted what there is in business, politics, conviviality, and so on - have found that none of these finally satisfy, or permanently wear - what remains? Nature remains.
The mystic chords of memory, stretching from every battle-field, and patriot grave, to every living heart and hearth-stone, all over this broad land, will yet swell the chorus of the Union, when again touched, as surely they will be, by the better angels of our nature. --as quoted in THE RIVER OF WINGED DREAMS
Wherefore did Nature pour her bounties forth
With such a full and unwithdrawing hand,
Covering the earth with odours, fruits, flocks,
Thronging the seas with spawn innumerable,
But all to please and sate the curious taste?
Upon the purple tree-tops far away, and on the green height near at hand up which the shades were slowly creeping, there was an equal hush. Between the real landscape and its shadow in the water, there was no division; both were so untroubled and clear, and, while so fraught with solemn mystery of life and death, so hopefully reassuring to the gazer's soothed heart, because so tenderly and mercifully beautiful.
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.