言論自由（freedom of Speech）── 國際

在早期的憲法模式中，言論自由是受保障的權利，例如美國憲法第一修正案，但是隨著溝通技術的發展，諸如象徵性言論及藝術創作等形式的溝通方式，亦受到保障。國際法採用較廣意的發表意見的自由。而美國法院對言論自由的解釋也包含其他形式的溝通方式。

In early constitutional models, freedom of speech was the primary protected right. With the development of communications technology, it became apparent that other communication forms needed protection, such as symbolic speech and artistic endeavours. International instruments use the broader term “freedom of expression,” while the jurisprudence of the U.S. courts uses “speech” to include other forms of communication, as is deemed appropriate given technological advances. This is an evolving area of law.

資料來源：東吳大學張佛泉人權研究中心編纂：《人權字典》（臺北市：教育部，2007年6月，第一版一刷），頁180。