La pensée ne doit jamais se soumettre, ni à un dogme, ni à un parti, ni à une passion, ni à un intérêt, ni à une idée préconçue, ni à quoi que ce soit, si ce n'est aux faits eux-mêmes, parce que, pour elle, se soumettre, ce serait cesser d'être.
Speech, University of Brussels (19 November 1909), during the festival for the 75th anniversary of the university's foundation; published in Œuvres de Henri Poincaré (1956), p. 152
“Be not unwilling in what thou doest, neither selfish nor unadvised nor obstinate; let not over-refinement deck out thy thought; be not wordy nor a busybody.”
III, 5
Meditations (c. 121–180 AD), Book III
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Marcus Aurelius 400
Emperor of Ancient Rome 121–180Related quotes
“Whom neither shape of danger can dismay,
Nor thought of tender happiness betray.”
Source: Character of the Happy Warrior http://www.bartleby.com/145/ww302.html (1806), Line 72.
“There is one god, greatest among gods and men, similar to mortals neither in shape nor in thought.”
Fragment 23, as quoted in Notes on Greek Philosophy by Anthony Preus (Global Academic Publishing, 1996), p. 10
“Sweet are the words of Love, sweeter his thoughts:
Sweetest of all what Love nor says nor thinks.”
De Flagello myrteo. clxv.
From 1980s onwards, Critical Path (1981)