on (one's) own volition

Of one's own choice. No one told me to leave. I left early on my own volition. You failed this class on your own volition—don't try to blame it on me!

Common Names:

Name	Pronounced	Usage
Georgina	jor-JEE-nə (English)	English, Dutch, German, Spanish
Festus	FES-təs (English)	Ancient Roman, Biblical Latin, Biblical
HadiİYe	-	Turkish
Iosif	ee-O-seef (Russian), YO-seef (Romanian)	Russian, Romanian, Greek
Balthazar	[bæl'θæzə]
Iraklis	-	Greek