I feel that every human being knows that someone or something greater than them exists. Its not so clear what or who it is. But we all know.
Then we can look to see if there is any reasonable way to find out who or what this is. It is in this search that I heard about a person called Jesus. Apparently this person died and rose from the dead. Seemed to me like, if he did indeed die and rise from the dead, this is the person that would be reasonable to listen to. He seemed to have proven his authority.
So I looked for evidence that he did indeed rise from the dead and all this was no fabrication. Some historical texts after, the thing that made me realize this person must indeed have risen from the dead was the existence of his Apostolic successors today. It meant that there were people after his death, who were willing to give their lives for the belief that this person rose from the dead. If it was up to me to find out if these men who called themselves Apostles were lying, I would have tortured them myself and put a couple to death to figure out if others would still be willing to testify for a lie. But someone else did it, and it seems that they did give witness to the truth fearlessly.
Then I think about whether all these men could have been insane. But it seems highly improbable that every Apostle chosen by a man at a time where Psychology was not developed was mentally insane. That would be a miracle in it-self if he managed to pick that well.
Then I think about whether this whole Jesus was a cult leader. But then it hits me from my knowledge in psychology that any cult, after the death of a cult leader just fades away. Followers are only willing to give their lives when the Cult leader is alive and giving orders. But then this means that the carrying out of orders to preach by the Apostles after the death of Jesus would suggest that this person was truly alive again.
After some more arguments of this sort, it became clear to me that Jesus was the one to listen to. I receive what he taught from his Apostles today in the Catholic Church. I believe in God, the Bible, the Dogmas not because they seem true but because that is what the Apostles teach. I believe in the Apostles because they were given authority by Apostles Jesus himself chose to teach. I believe in Jesus because he proved his authority through the resurrection.
Now of course, after believing in God for so long, a logical argument from someone like St. Thomas Aquinas is also good at reconfirming what I believe to be reasonable. But my faith hinges on the death and resurrection of Jesus! After years of praying and building a relationship with Jesus, God, the Holy Spirit, the Blessed Mother and the communion of saints, they are more real to me than most people I know!