ars est celare artem

[ ahrs est ke-lah-re ahr-tem; English ahrz est suh-ley-ree ahr-tuh m, -lair-ee, ahrs ]
/ ɑrs ɛst kɛˈlɑ rɛ ˈɑr tɛm; English ɑrz ɛst səˈleɪ ri ˈɑr təm, -ˈlɛər i, ɑrs /

Latin.

it is art to conceal art; true art conceals the means by which it is achieved.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019