great believer
firm believer

And I'm a very firm believer that it is within everybody's right to examine the actions of their government.

Many of them were firm believers in public school.

I shouldn't wonder if we finally became firm believers in "mind cure."

So they are firm believers that economic (financial) growth is the answer.

To many of our donors, the benefits seem almost too good to be true- but they are firm believers now!

But I was very fortunate because my parents both went to college and were very strong, firm believers in education.

Both of his parents were firm believers in better living through chemistry.

The Maya were firm believers in equal opportunity when it came to human sacrifice.

My wife and I are firm believers in supporting the small store.

The Japanese are firm believers that the best view of the ranchu is from the top.