Y'shtola is not Eorzean, she is from Sharlayan, so that is why her language can be a bit "higher brow" than the average Eorzean's language.... "Without the illumination of knowledge, we but vainly flail as specters in the dark." - Y'shtola

She is the "Cultured Conjurer" and eternally on her 23rd nameday (even though her younger sister Y'mhitra is 26), yet will also treat us to her dry sense of humor.... "I am... not interested, little sun. Try again when you have become a man." - Y'shtola

Lastly, consider her up bringing, at around age 7 she was sent to study under Archon Matoya... That will certainly scar you for life.... "Constantly at each others throats like rabid...gods I'm beginning to sound like her" - Y'shtola