Speech..

 Categories of Unprotected Speech

Certain types of speech receive little to no First Amendment protection and may be restricted: 

Speech that directly advocates for illegal activity that is likely to occur in the immediate future. 
False statements that harm someone's reputation (libel is written, slander is spoken). 
Serious expressions of intent to commit an act of unlawful violence against a particular individual or group. 
 Speech or material that is patently offensive and lacks serious literary, artistic, political, or scientific value. 
 A specific and universally unprotected form of illegal content. 
 Words that, when personally addressed to an individual, are likely to provoke a violent reaction. 
 Lies specifically used for commercial gain or in illegal conduct.