Autotelic: from the Greek αuτοτελής (autotelēs).

From αuτός: autos (self) and τέλος: telos (goal).

Describes people who are internally driven, and as such may exhibit a sense of purpose and curiosity, as autotelic.

This is an exclusive difference from being externally driven, where things such as money, power, or fame are the motivating force˝.