Why did Edmund Burke distrust plans for society based only on abstract ideas?

Edmund Burke distrusted plans for society based on abstract ideas because he believed they ignored the complexity of modern states and the value of inherited tradition. In his view, society is a complex, evolving partnership between the dead, the living, and those yet to be born; attempting to reconstruct it through speculative, metaphysical schemes—rather than building upon established customs and institutions—threatens to destroy the material and spiritual resources of a culture.123

Burke argued that human beings are inherently flawed and possess limited individual reason, making it safer to rely on the "latent wisdom" of tradition and prejudice—which accumulate slowly over time—than on untested, rationalist theories. He contended that political power is a trust, not a license to rebuild society according to "floating fancies". Consequently, he believed that any attempt to impose radical, abstract doctrines on a society is likely to result in despotism and chaos, as such efforts cut across the natural processes of social development. Instead, he advocated for evolutionary change that preserves the best of the past while addressing specific, practical needs.13