I would agree with the previous post, and add that there are many paths to being smart.
I might advise finding some textbooks by people who look at subjects that are well understood mathematically in interesting new ways - asking thought provoking questions about why something is true. On the...
I have read several posts asserting that mutation and natural selection cannot add complexity or useful functions to the genome.
I'd like to add a link to an experiment that proves them wrong, and also teaches us a lot about how evolution works - the E-coli long term evolution experiment...