Abraham Tucker, an English metaphysician, born in London, Sept. 2, 1705, died at his seat in Surrey, Nov. 20, 1774. He was educated at Oxford. In 1727 he purchased Betchworth castle, with a large estate, near Dorking, and there devoted himself to the study of agriculture. In 1754 he published the letters which had passed between himself and his wife, under the title "A Picture of Artless Love," and in 1755 a pamphlet against strong political feeling, entitled "The Country Gentleman's Advice to his Son on the Subject of Party Clubs." About this time he began his great work, "The Light of Nature Pursued, by Edward Search," four volumes of which were published in 1765; but a part of it had already appeared in 1763 under the title of " Free Will." In reply to a criticism on the work in the " Monthly Review," he wrote "Man in Quest of Himself, by Cuthbert Comment." He became blind in 1771, but continued to work upon his " Light of Nature Pursued," the remaining volumes of which were edited by his daughter, after his death.

The best edition is that of Sir Henry Miidmay (7 vols. 8vo, 1805; 4 vols., Cambridge, Mass., 1831; 2 vols., London, 1852).