... Sebastian, who might be brilliant, was also terminally soft-spoken. He wore a beard that obscured his mouth, which Chris took as emblematic: the words that found their way out were sparse and generally difficult to interpret.
Excerpt from Blind Lake
by Robert Charles Wilson
Side note: Growing up, I know that this quote represents how I was often perceived. Even now, I'm often seen this way: soft spoken. People sometimes equate this as a lack of confidence. I think it's more a lack of practice (with perhaps a lack of interest thrown in). If you don't often make conversation, sometimes you forget how to regulate your voice.