Theology bears the same relation to science that the black art does to chemistry, that magic does to mathematics.
She was advised to consult a man who was an adept in the black art.
The good brother, who persisted in preaching the end of the world, was strongly suspected of dealing in the black art.
I don't think this is a case of the black art or anything of the sort.
Had I a thousand daughters, by heaven I'd as soon have them taught the black art as their alphabet!
I know more or less about black art, but that series of rooms is too much for me.
He was a mighty man, and thoroughly skilled in the black art.
I'd as soon have them taught the black art as their alphabet!
"It's a lady climbing a ladder," he announced composedly and drew back his sleeve to reveal this sample of black art.
The books which instruct in the black art are known as 'black books.'
A collection of arcane, unpublished, and (by implication) mostly ad-hoc techniques developed for a particular application or systems area (compare black magic). VLSI design and compiler code optimisation were (in their beginnings) considered classic examples of black art; as theory developed they became deep magic, and once standard textbooks had been written, became merely heavy wizardry. The huge proliferation of formal and informal channels for spreading around new computer-related technologies during the last twenty years has made both the term "black art" and what it describes less common than formerly. See also voodoo programming.