Some of these important groups are as follows:—
In England.
1. Associationalist Psychologists: Peter Brown (d. 1735), Hartley (1704–1757), Search (1705–1774), Priestley (1733–1804), Tooke (1736–1812), Erasmus Darwin (1731–1802), Thomas Brown (1778–1820).
2. Moral Philosophers: Shaftesbury (1671–1713); morality based on intellect, Samuel Clarke (1675–1729); Wollaston (1659–1724); morality based on feeling, Hutcheson (1694–1747); Home (1696–1782); Burke (1730–1797); Ferguson (1724–1816); Adam Smith (1723–1790); morality based on authority, Butler (1692–1752); Paley (1743–1805); ethics based on associational psychology, Bentham (1748–1832); in an isolated ethical position, Mandeville (1670–1733); the Platonist, Price (1723–1791).
3. The Deists: Toland (1670–1722), Collins (1676–1729), Tindal (1656–1733), Chubb (1679–1747), Morgan (d. 1743), Bolingbroke (1678–1751).
4. The Scottish School of Philosophy: Thomas Reid (1710–1796), Oswald (d. 1793), Beattie (d. 1805), Dugald Stewart (1753–1828).
In France.
1. Skeptics: Bayle (1647–1706), Voltaire (1694–1778), Maupertuis (1698–1759), d’Alembert (1717–1783), Buffon (1707–1788), Robinet (1735–1820).
2. The Sensualists: La Mettrie (1709–1751), Bonnet (1720–1793), Condillac (1715–1780), Cabanis (1757–1808).
3. The Encyclopædists: Diderot (1713–1784), Voltaire, d’Alembert, Rousseau (1712–1778), Turgot, Jaucourt, Duclos, Grimm (1723–1807), Holbach (1723–1789), Helvetius (1715–1771).