Ralph Waldo Emerson (1803–1882) American philosopher, essayist, and poet
1830s, The American Scholar http://www.emersoncentral.com/amscholar.htm (1837)
Source: https://theosophy.world/sites/default/files/ebooks/Annie%20Besant-In-The-Outer-Court.pdf In the Outer Court, 1895, p. 60
Ralph Waldo Emerson (1803–1882) American philosopher, essayist, and poet
1830s, The American Scholar http://www.emersoncentral.com/amscholar.htm (1837)
James Allen (1864–1912) British philosophical writer
As A Man Thinketh (1902)
Variant: Mind is the Master Power that molds and makes, And we are mind. And ever more we take the tool of thought, and shaping what we will, bring forth a thousand joys, or a thousand ills. We think in secret, and it comes to pass, environment, is but our looking glass.
Jean de La Bruyère book Les Caractères
Ménippe est l'oiseau paré de divers plumages qui ne sont pas à lui. Il ne parle pas, il ne sent pas; il répète des sentiments et des discours, se sert même si naturellement de l'esprit des autres qu'il y est le premier trompé, et qu'il croit souvent dire son goût ou expliquer sa pensée, lorsqu'il n'est que l'écho de quelqu'un qu'il vient de quitter.
Aphorism 40
Les Caractères (1688), Du mérite personnel
William Morris (1834–1896) author, designer, and craftsman
Signs of Change (1888), Useful Work versus Useless Toil
Robert D. Richardson (1934) American historian
Source: Emerson: The Mind on Fire (1995), p. 90
Patañjali (-200–-150 BC) ancient Indian scholar(s) of grammar and linguistics, of yoga, of medical treatises
§ 1.2
Yoga Sutras of Patañjali