What's harder to understand is why they seem so determined to prove him right.

Determined to prove himself right, all evidence to the contrary.

Harold is determined to prove himself by getting into the big football game.

But Jason is determined to prove he's telling the truth for once.

And ever since I've been determined to prove them wrong.

However, he was determined to prove himself in spite of it.

His mother never gave up on him and was determined to prove to the world that her child can be normal.

Michael arrives home, determined to prove that he is a fun guy.

He is determined to prove himself, even if it means breaking the rules.

But students say the pressure makes them more determined to prove their school works.