'Fools rush in where angels fear to tread' is quoted by-

Alexander Pope, (born May 21, 1688, London, England—died May 30, 1744, Twickenham, near London), poet and satirist of the English Augustan period, best known for his poems An Essay on Criticism (1711), The Rape of the Lock (1712–14), The Dunciad (1728), and An Essay on Man (1733–34).
_He is one of the most epigrammatic of all English authors.

Some of the quotes of Alexander Pope from An Essay on Criticism are-
- Fools rush in where angels fear to tread.
- To err is human, to forgive, divine.
- An honest man's the noblest work of God.

[Source: britannica]