"studying Sanskrit and Coptic and those other nutty languages"

 Sanskrit is an ancient Indian language, the primary language of Hinduism and Buddhism. Many of the religious writings of Hinduism and Buddhism were written in Sanskrit, such as the Hindu Upanishads. It is still one of the 22 official languages of India, and the state language of Uttarakhand, with about 14,000 native speakers.

Coptic is an Egyptian language, closely related to Late Egyptian, which was written in hieroglyphics. The main difference between Late Egyptian and Coptic is the script. It was the language of the Coptic Orthodox Church of Alexandria.