Unfortunately, nature seems unaware of our intellectual need for convenience and unity, and very often takes delight in complication and diversity.
Santiago Ramon y CajalI would be the last to deny that the greatest scientific pioneers belonged to an aristocracy of the spirit and were exceptionally intelligent, something that we as modest investigators will never attain, no matter how much we exert ourselves. Nevertheless ... I continue to believe that there is always room for anyone with average intelligence ... to utilize his energy and ... any man could, if he were so inclined, be the sculptor of his own brain, and that even the least gifted may, like the poorest land that has been well-cultivated and fertilized, produce an abundant harvest.
Santiago Ramon y CajalIt is idle to dispute with old men. Their opinions, like their cranial sutures, are ossified.
Santiago Ramon y Cajal