“Aeschylus: It is the compelling power of great thoughts and ideas to engender phrases of equal size.”
tr. Dillon 1995, Perseus http://www.perseus.tufts.edu/hopper/text.jsp?doc=Aristoph.+Frogs+1058
Frogs, line 1058-1059
Frogs (405 BC)
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Aristophanés 56
Athenian playwright of Old Comedy -448–-386 BCRelated quotes

1790s, Discourse to the Theophilanthropists (1798)

La pluma es la lengua del alma: cuales fueren los conceptos que en ella se engendraren, tales serán sus escritos.
Source: Don Quixote de la Mancha (1605–1615), Part II (1615), Book III, Ch. 16, as translated by Henry Edward Watts (1895).

The Notebooks of Leonardo da Vinci (1883), IV Perspective of Disappearance

Source: Autosuggestion : My method (2014), Chapter I. The reality of auto-suggestion.