Rand Paul addressed the crowd at CPAC today in a speech that was largely focused on the constitution and civil liberties.

The Kentucky Senator drew applause as he criticized the federal government’s policies on domestic surveillance.

“Yet, as our voices rise in protest, the NSA monitors your every phone call. If you have a cell phone, you are under surveillance. I believe what you do on your cell phone is none of their damn business.”

Paul went on to talk about the importance of the Fourth Amendment, later quoting lyrics from Pink Floyd’s “Wish You Were Here.”

And then Paul concluded by inviting others to stand together for liberty.

“It is decidedly not a time for the faint of heart.  It’s a time for boldness and action. The time is now, stand with me, let us stand together for liberty.”

Watch the full speech below.