Given sufficient time - of which he was the sole master - he could examine the reaches of space.
Not satisfied with his victory, he wishes to become sole master of the Amahagane and spread his power even farther.
Constantine consequently became the sole master of the Roman Empire.
The world had fallen to them by default, and they had been its sole masters for seven hundred thousand years.
He was no longer sole master of the Venny.
Constantine was then the sole and undisputed master of the Roman world.
He was the sole master of the camp, allowing nobody to enter of leave without his permission.
I am not the sole master of this business, my wife's brother shares my profits and my obligations.
From Zedd, he'd learned that he was the sole master of his universe.