By the age of 13, Darab has already proven his power and youth.

- the video retail industry had proved its staying power.

Similar arguments were used to prove God's power and uniqueness.

He was going to prove his power in another way and conquer the fatal destiny itself.

I will prove my power; you have no need to tell me what your policy is.

After more than ten years of approaching various banks, the company had finally proved its staying power.

Hybrids haven't been around very long, so they've yet to prove their staying power over the dozen or more years required.

I have already proven my power as the world's master of crime.

Again it was easier to avoid than to fight; he had no desire to waste magic or to prove his power.

But Hearns has more than proved his staying power since then.