C.N. Douglas, comp. Forty Thousand Quotations: Prose and Poetical. 1917.
Persons who want experience should be extremely cautious how they depart from those principles which have been received generally, because founded on solid reasons, and how they deviate from those customs which have obtained long, because in their effect they have proved good: thus circumspect should all persons be, who cannot yet have acquired much practical knowledge of the world: lest, instead of becoming what they anxiously wish to become, more beneficial to mankind than those who have preceded them, they should actually though inadvertently be instrumental towards occasioning some of the worst evils that can befall human society.