Anthony Ashley-Cooper, 3rd Earl of Shaftesbury1671–1713- Characteristicks of Men, Manners, Opinions, Times (1711), Vol. 1, p. 11; “A Letter Concerning Enthusiasm”.
‘Tis the hardest thing in the world to be a good Thinker, without being a strong Self-Examiner.
Characteristicks of Men, Manners, Opinions, Times (1711), Vol. 1, p. 92; “Soliloquy: or Advice to an Author”.





