Some of these important groups are as follows:—

In England.

1. Associationalist Psychologists: Peter Brown (d. 1735), Hartley (17041757), Search (17051774), Priestley (17331804), Tooke (17361812), Erasmus Darwin (17311802), Thomas Brown (17781820).

2. Moral Philosophers: Shaftesbury (16711713); morality based on intellect, Samuel Clarke (16751729); Wollaston (16591724); morality based on feeling, Hutcheson (16941747); Home (16961782); Burke (17301797); Ferguson (17241816); Adam Smith (17231790); morality based on authority, Butler (16921752); Paley (17431805); ethics based on associational psychology, Bentham (17481832); in an isolated ethical position, Mandeville (16701733); the Platonist, Price (17231791).

3. The Deists: Toland (16701722), Collins (16761729), Tindal (16561733), Chubb (16791747), Morgan (d. 1743), Bolingbroke (16781751).

4. The Scottish School of Philosophy: Thomas Reid (17101796), Oswald (d. 1793), Beattie (d. 1805), Dugald Stewart (17531828).

In France.

1. Skeptics: Bayle (16471706), Voltaire (16941778), Maupertuis (16981759), d’Alembert (17171783), Buffon (17071788), Robinet (17351820).

2. The Sensualists: La Mettrie (17091751), Bonnet (17201793), Condillac (17151780), Cabanis (17571808).

3. The Encyclopædists: Diderot (17131784), Voltaire, d’Alembert, Rousseau (17121778), Turgot, Jaucourt, Duclos, Grimm (17231807), Holbach (17231789), Helvetius (17151771).