I'll let you in on a secret. All of us humans are ignorant. Ignorance is a lack of knowledge. There is no doubt that we are all ignorant of something. For instance, I'm ignorant of what it means to be a woman, because I'm a male. I have no knowledge of astro-physics or quantum theory. I'm decidedly ignorant about botany, except for the knowledge of what plants make my hay-fever go wild.
I do know this, however, the gaining of knowledge does not lead to the destruction of faith. It merely transforms it. When man learned that the world was round and not flat, it did not destroy people's faith in God. Rather they just gained a better understanding of the world they lived in. When man learned that the Earth was not the center of the universe, it did not destroy people's faith. It just became one less thing they remained ignorant about.
Having faith does not mean you cease continuing to learn. As you gain knowledge, you become less ignorant of the world around you and gain a better understanding, perhaps, of your own faith.