A smart chimp

There was a very smart chimp in a zoo. He was so smart that his keeper tried to teach it to read, and indeed the chimp did learn!

During many years the keeper gave him the most simple reading materials he could find: comics', children books, the Harry Potter series, Ayn Rand, Murdoch newspapers and so on, until de chimp became bored and showed no more interest in reading. The keeper, that could decrypt the chimp's thoughts from  his facial expressions with an almost telepathic accuracy, understood that is was thinking "rather bananas than books".

This vexed and disappointed the keeper, who after dwelling deeply on  this matter said to himself "Maybe the reading stuff I'm giving is too silly,  what if I give the chimp a real book?"

Then he brought the chimp his Bible and it worked! The chimp read the whole day and almost the whole night. The keeper had to take the Bible away from it to compel the chimp to eat. In a few weeks the chimp finished the Bible and by its gestures the keeper understood it was asking for another book. This time the keeper boldly decided to give the chimp a scientific book and he chose Darwin's "Origin of Species".

The chimp read this book with the same interest and avidity it had read the Bible. It took him less than two weeks to read the entire book. And then, something very strange happened. The chimp stopped walking, playing, ate his food with little interest and spent most of his time sitting on a big rock, that was in the middle of his zoo cage, in exactly the same position as Rodin's thinker. Many days went on and the chimp's behavior didn't budge. It passed its days sitting like Rodin's thinker.

The keeper became increasingly worried, his boss became aware of the chimp's inactivity, and being under more and more pressure and afraid to loose his job, the keeper asked the chimp "Why are you sitting the whole day on that darn rock and doing nothing?" and very surprisingly the chimp talked back to the keeper and said: "After reading the Bible and Darwin I'm trying to figure out if I am my brother's keeper or if I am my keeper's brother".