Habermas Juergen; haecceity; Hamilton William; Hampshire Stuart; Happiness; Haraway Donna Jeanne; Harding Sandra; Hare Richard Mervyn; Hart Herbert Lionel Adolphus; Hartley David; Hartmann Nicolai; Hayek Friedrich August von; hedonism; Hegel Georg Wilhelm Friedrich; Heidegger Martin; Heisenberg Werner; Held Virginia Potter; Helvaetius Claude-Adrien; Hempel Carl Gustav; Heraclitus; Herbert of Cherbury Baron; hermeneutics; Hobbes Thomas;