“If, therefore, you've already considered that Signac and the others who are doing pointillism often make very beautiful things with it - Instead of running those things down, one [Bernhard] should respect them and speak of them sympathetically, especially when there's a falling out. Otherwise one becomes a narrow sectarian oneself, and the equivalent of those who think nothing of others and believe themselves to be the only righteous ones. This extends even to the academic painters, because take, for example, a painting by Fantin-Latour — and above all his entire oeuvre. Well then — there's someone who hasn't rebelled, and does that prevent him, that indefinable calm and righteousness that he has, from being one of the most independent characters in existence?”

Ceux qui s'appliquent trop aux petites choses deviennent ordinairement incapables des grandes.
Maxim 41.
Reflections; or Sentences and Moral Maxims (1665–1678)

Source: THE VALUE OF HUMAN DIGNITY: Brunello Cucinelli’s Vision for a Better World https://gearpatrol.com/2018/12/20/brunello-cucinelli-interview/ John Zientek, Gear Patrol, December 20, 2018

Entry (1960)
Eric Hoffer and the Art of the Notebook (2005)
Context: Total innovation is a flight from comparison and also from imitation. Those who discover things for themselves and express them in their own way are not overly bothered by the fact that others have already discovered these things — have even discovered them over and over again — and have expressed what they found in all manner of ways.

"The Lover and the Beloved", p. 1.
The Everything and the Nothing (1963)

Source: The Pig Who Sang to the Moon (2003), Ch. 1, p. 52

"Introduction", to Eye, (1987)
General sources

Used in the Apple "Think Different" marketing campaign and sometimes attributed to Kerouac on the internet, perhaps because it evokes his famous quote from On the Road: "The only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn, like fabulous yellow roman candles exploding like spiders across the stars and in the middle you see the blue centerlight pop and everybody goes "Awww!"" The original script was actuality written by Rob Siltanen with participation of Lee Clow. In "The Real Story Behind Apple's 'Think Different' Campaign" in Forbes (14 December 2011) http://www.forbes.com/sites/onmarketing/2011/12/14/the-real-story-behind-apples-think-different-campaign/ Rob Siltanen states: "I wrote everything..." "I shared my scripts with Lee, and he thought they were good. He made a couple tweaks..."
Misattributed

Apple Inc. "Think different" advertising company.
2000s

"Quotes", Anatomy of Criticism: Four Essays (1957), Polemical Introduction