An exploration of original texts in the history of thought about the workings of the human mind starting in Antiquity and leading to the development of the empirical discipline of psychology in the 19th century and some of its modern trends. Selections from Aristotle, Stoics, Epicureans, Descartes, Hobbes, Spinoza, Hume, Kant, Rousseau, Mill, Herbart, Wundt, James, Nietzsche, Freud. Subsequent developments, including the child study movement, are explored though 20th century writings, culminating with Sartre’s philosophical psychology and sources in Eastern thought to put the Western trajectory in perspective.