Language can take many forms of communication, both verbal and non-verbal. It allows people to express thoughts, feelings, and ideas across cultures and communities, though some phrases may only be appropriate or "correct" within certain contexts. While speech is one way to communicate verbally, language also includes sign language, body language, and other physical signals of emotion. Even without speech, people can communicate through alternate means, as demonstrated by Jean-Dominique Bauby who wrote a entire memoir by blinking his eye. Language is versatile and limitless in how it allows humans to connect with one another.