Almost anything that’s in Walden:
“We must learn to reawaken and keep ourselves awake, not by mechanical aids, but by an infinite expectation of the dawn, which does not forsake us in our soundest sleep.”
“I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.”
Enjoy nature!
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"Les grandes personnes ne comprennent jamias rien toutes seules, et c'est fatigant, pour les enfants, de toujours et toujours leur donner des explications." - Le Petit Prince