Habermas Jürgen (b.1929), German philosopher and social theorist, a leading representative...

haecceity (from Latin haec, 'this'), (1) loosely, thisness; more specifically, an...

Haeckel Ernst (1834–1919), German zoologist, an impassioned adherent of Darwin's theory...

Ha-Levi Judah (c.1075–1141), Spanish Jewish philosopher and poet. Born in Toledo,...

Halldén-complete See COMPLETENESS.

hallucination See PSEUDOHALLUCINATION.

hallucination, argument from See PERCEPTION.

halting problem See COMPUTABILITY.

Hamann Johann Georg (1730–88), German philosopher. Born and educated in Königsberg,...

Hamilton William (1788–1856), Scottish philosopher and logician. Born in Glasgow and...

Han Fei Tzu also called Master Han Fei (third century B.C.), Chinese Legalist...

Han Yü (768–824), Chinese poet and essayist who, though his thoughts lacked...

happiness See ARISTOTLE, HEDONISM, UTILITARIAN-. IS.

hard determinism See FREE WILL PROBLEM.

Hardenberg, Friedrich von See NOVALIS.

hardware See COMPUTER THEORY.

Hare R(ichard) M(ervyn) (b.1919), English philosopher who is one of the...

harmony, preestablished See LEIBNIZ.

harmony of the spheres See PYTHAGORAS.

Hart H(erbert) L(ionel) A(dolphus) (1907–92), English philosopher principally responsible for the...

Hartley David (1705–57), British physician and philosopher. Although the notion of...

Hartmann Eduard von (1842–1906), German philosopher who sought to synthesize the...

hasty generalization, fallacy of See INFORMAL FAL -. LAC.

heap paradox See SORITES PARADOX.

heart See HSIN1.

Heaven See T'IEN.

hedonic calculus See BENTHAM.

hedonism the view that pleasure (including the absence of pain) is...

hedonistic paradox See HEDONISM.

Hegel Georg Wilhelm Friedrich (1770–1831), one of the most influential and...