If I ask you whether you believe in Jesus, you'll probably say no. Do you know that he is a historical figure? Traditional Catholicism understands "faith" as a purely rational approach, not an emotional one. You examine certain issues and rationally come to a conclusion about whether they are convincing to you or not.
I simply belong to the group that is convinced of the truth of Catholicism. Most people today do not. However, most people do not approach this matter objectively but rather emotionally.