It is actually impossible in theory to determine exactly what the hidden mechanism is without opening the box, since there are always many different mechanisms with identical behavior. Quite apart from this, analysis is more difficult than invention in the sense in which, generally, induction takes more time to perform than deduction: in induction one has to search for the way, whereas in deduction one follows a straightforward path.

p. 20 as cited in: Yll Haxhimusa (2006) The Structurally Optimal Dual Graph Pyramid and Its Application in Image Partitioning. p. 149 - Vehicles: Experiments in Synthetic Psychology (1984)