- Spencer, Herbert, 1820-1903 (11)
- Jeremy Bentham (10)
- Bacon, Francis, 1561-1626 (4)
- Ellis, Robert Leslie, 1817-1859 (4)
- Fieser, James (4)
- Heath, Douglas Denon, 1811-1897 (4)
- Hobhouse, L. T. (Leonard Trelawney), 1864-1929 (4)
- Spedding, James, 1808-1881 (4)
- Beattie, James, 1735-1803 (2)
- Davis, John Whitney, 1921- (2)
- Hume, David, 1711-1776 (2)
- Locke, John, 1632-1704 (2)
- Mill, John Stuart, 1806-1873 (2)
- Oswald, James, 1703-1793 (2)
- Reid, Thomas, 1710-1796 (2)
- Russell, Bertrand, 1872-1970 (2)
- Bentham, Jeremy, 1748-1832 (1)
- Berry, Christopher J. (1)
- Bevan, Bryan (1)
- Bladen, V. W. (1)
- Christopher Williams (1)
- Cornforth, Maurice Campbell, 1909- (1)
- Ferguson, Adam, 1723-1816 (1)
- Hamilton, William, Sir, 1788-1856 (1)
- Hobbes, Thomas, 1588-1679 (1)
- Kanekatsu, Hisashi (1)
- Mill, J.S. (1)
- Norton, David Fate (1)
- Pitson, A E (1)
- Pogson Smith, W. G. (William George) (1)
- Popkin, Richard H. (1)
- Raynor, David (1)
- Robson, John M. (John Mercel), 1927- (1)
- Russell, Bertrand (1)
- Spencer, Herbert (1)
- Spencer, Herbert. (1)
- Spencer, Mark G. (1)
- Stewart, Dugald, 1753-1828 (1)
- Yolton, John W., 1921- (1)
- by Stephen Paul Foster (1)
- no value (1)