Someone has said that a philosopher looking for the ultimate truth is like a blind man on a dark night searching in a subterranean cave for a black cat that is not there. Those Gnostics, however, were theologians rather than philosophers, and so—they found the cat!

“Since Calvary: An Interpretation of Christian History” by Lewis Browne 1931.

BUT the best version ever is from the great Dave Allen

Then:

The universe is largely dark.

Life is like being in a dark room.

Quantum physics is like being in a dark room and looking for a black cat in a black box and the box, the cat, the room and you are either there or not.

Agnosticism is like being in a dark room and looking for a black cat that isn't there and when a theist says, "I found it", you can't decide whether to talk to a quantum physicist, a fairy at the bottom of the garden, or a supreme being.

Zen buddhism is like the room isn't dark and the cat isn't black it's your perception and ability to describe and comprehend.

Photography (a few decades ago) was like being in a darkroom and waiting for the image of a cat to appear in a tray full of smelly chemicals.