For years, this book gave to many young Catholics the support and knowledge to sustain their Faith throughout their lifetime. They knew the Catholic Religion, and they knew the reasons for it. The structure and sequence of the argument of Sheehan's. Apologetics have a unique clarity and logical force. The exposition of the deposit of faith in Catholic Doctrine is clear and thorough. Objections are faced openly and honestly. Dr. Sheehan's whole text breathes a loving confidence in the truth of the Faith founded on Him to Whom all honour and glory is due: Jesus Christ, the same, yesterday, today and forever.