I do know the difference between a Catechism and systematic theology having read both..
My point was that the Catholic church that claims to be the only one that can correctly define scripture have never developed a systematic theology ..
They have put time into developing a catechism but not a systematic theology.. makes one wonder
Then they had them to another place called Mount Innocent, and there they saw a man cloathed all in White, and two men Prejudice and Ill-will continually casting Dirt upon him. Now behold the Dirt whatsoever they cast at him would in a little time fall off again, and his Garment would look as clear as if no Dirt had been cast thereat.Then said the Pilgrims, What means this? The Shepherds answered, This man is named Godly-man, and this Garment is to shew the Innocency of his life. Now those that throw Dirt at him, are such as hate his well-doing, but as you see the Dirt will not stick upon his Cloaths, so it shall be with him that liveth truly innocently in the World. Whoever they be that would make such men dirty, they labour all in vain; for God, by that a little time is spent, will cause that their Innocence shall break forth as the Light, and their Righteousness as the Noonday.