|“|| Prime #2: Sam. We have been watching you a long long time.|
Prime #1: You have fought for Optimus, our last descendant, with courage and with sacrifice, the virtues of a leader. A leaders worthy of our secret: the Matrix of Leadership is not found. It is earned. Return now to Optimus. Merge the Matrix with his spark. It is, and always has been, your destiny.
|~ Primes to Sam Witwicky before reviving him|
The Dynasty of Primes were six of the seven Primes and the original leaders of the Autobots. 17000 BC in Egypt, they were searching the world rich with raw energy for Energon. They built the Solar Harvester to create Energon by destroying suns. However, due to its purpose, the Primes set out in Earth with one rule "Never destroy a planet with life." Until one of them defy this rule is called forevermore known as "The Fallen". The Primes fought against their fallen brother and defeated him to stole back the Matrix of Leader from him and buried themselves a tomb made from their own body to seal away the Matrix.
After Megatron killed Sam Witwicky, The Primes in his vision, revealed Sam the secret the Matrix of Leadership was not found but earned and fulfilled his destiny to return to Optimus and revive him with Matrix.
Unlike their evil brother, The Fallen, The Primes cares for humanity and made a rule which is "never destroy a planet with life." They were also suicidals as they sacrifice their lives to seal away the Matrix of Leadership with a tomb made from their own bodies. They view Sam Witwicky worthy for virtual of a leader and reveal the secret of the Matrix after fought for the last descendant, Optimus with courage and sacrifices.