Just read
Flowers for Algernon. It's a delightful short story. It's also potently frightening. The portrayals of intelligence in the book are haphazard at times - but at least Keyes doesn't overindulge himself when Charlie gets to his peak intelligence. The beauty I find in the book is how quintessentially the essence of longing is displayed. At all stages of his mental maturity, Charlie is desiring
something. Flowers captures this fundamental aspect of humanity and doesn't ever let go. This is a double blade, however, because that emotion can transfer the reader. (Perhaps this is intentional.) Before you know it you're hoping against the inevitable, as you do when you're watching a movie you've seen before and it's about to get to
that part.
It's a neat look into psychology besides. Nothing with any academic depth, of course, but certain going-ons of the book elicits philosophical questions to muse upon at your leisure.