L. Sprague de Camp

I've studied various schools of thought... I acknowledge that some Muslims consider music prohibited, but I've found a lot of evidence from the life of the Prophet to show that he allowed certainly, but even encouraged, music at certain times.

Innate mechanisms endow the visual system with highly specific connections, but visual experience early in life is necessary for their maintenance and full development. Deprivation experiments demonstrate that neural connections can be modulated by environmental influences during a critical period of postnatal development.