The death of poet, activist, and conservationist Wendell Berry on Monday was called by one labor organizer “a loss of morality and clarity and compassion,” as admirers of Berry’s lifelong crusade to defend the environment honored his memory by sharing favorite poems and other works.

Berry died at the age of 92 at his home in Port Royal, Kentucky, where he spent decades writing about his farming the land, teaching, and writing about the need to fight “the concentration of farmland into larger and larger holdings and fewer and fewer hands,” as he wrote in one of his best-known works, The Unsettling of America: Culture and Agriculture.

“The true measure of agriculture is not the sophistication of its equipment, the size of its income, or even the statistics of its productivity, but the good health of the land,” wrote Berry in the essay collection, published in 1977.

He stressed that the “increase in overhead, debt, and dependence on machines” in the agricultural sector “is a matter of complex significance, and its agricultural significance cannot be disentangled from its cultural significance.”