5 Solas are slogans (phrases) that emerged from the reformation to summarize the essential doctrine of Christianity. These ideas are central to "SALVATION. 

5 SOLAS ARE

Sola Scriptura / Scripture Alone

Sola Fide / Faith Alone

Sola Gratia / Grace Alone

Solus Christus / Christ Alone (Christ as King)

Soli Deo Gloria / For the Glory of God Alone