Tanis’ perception

“Tanis Half-Elven,” he finally said. “That is your name?”
“Among humans, that is what I am called,” Tanis answered. “My elvish name is long and difficult for humans to pronounce.”
Riverwind frowned. “Why is it,” he asked, “that you are called half-elf and not half-man?”
The question struck Tanis like a blow across the face. He could almost envision himself sprawling in the dirt and had to force himself to stop and swallow an angry retort. He knew Riverwind was asking this question for a reason. It had not been meant as an insult. This was a test, Tanis realized. He chose his words carefully.
“According to humans, half an elf is but part of a whole being. Half a man is a cripple.”

Excerpt From Dragons of Autumn Twilight, pg 135
Margaret Weis & Tracy Hickman