To split hairs

to make distinctions of useless nicety.
to make distinctions of useless nicety.

See also: Hair, Split

References in classic literature ?
I do not wish to split hairs, to make fine distinctions, or set myself up as better than my neighbors.
In not confirming a run for lieutenant governor, Naughton wrote he is "not trying to split hairs or play with language here," and would notify The Item and his local constituents "if and when" he was prepared to make a formal announcement.
In fact, the children of 2012 aren't afraid to split hairs to get their own way.
Anyway, not to split hairs or ears - the important thing is that Mr Llwyd has taken nimbyism to new heights.
If I was to split hairs I would say that despite the 8.
They may think we're splitting hairs but, believe me, it's okay to split hairs because these are the things that keep you in the Premier League.
Mustafa Barghouthi warned against efforts to split hairs on settlement policy.
NOT ONE to split hairs - the Contemporary Hair Doctor experts took to the streets of Middlesbrough on Saturday to offer the public the latest hair advice.
SIMON Cowell refused to split hairs last night with singing duo Guilty Pleasures.
To discuss the Hellfire Club as the context for erotica without discussing Wilkes (a member of the club), or the sexual images in his poetry because of its pornographic (rather than erotic) associations does a disservice to the sexual context of the eighteenth century and seems to be a way to split hairs.
He said he had decided to stay with Bradford anyway, but I'm not going to split hairs.
And to split hairs, isn't "in silico" really "in vitro"?