Both need each other: The agnostic cannot be content to not know, but must be in search of the great truth of faith; the Catholic cannot be content to have faith, but must be in search of God all the time, and in the dialogue with others, a Catholic can learn more about God in a deeper fashion.
Pope Benedict XVIThose who allow themselves to be led by the Spirit understand that placing oneself at the service of the Gospel is not an optional extra, because they are aware of the urgency of transmitting this Good News to others...I assure you that the Spirit of Jesus today is inviting you young people to be bearers of the good news of Jesus to your contemporaries.
Pope Benedict XVIThe more administrative machinery we construct, be it the most modern, the less place there is for the Spirit, the less place there is for the Lord, and the less freedom there is. It is my opinion that we ought to begin an unsparing examination of conscience on this point at all levels in the Church.
Pope Benedict XVITo the extent that we nourish ourselves on Christ and are in love with him, we feel within us the incentive to bring others to him: Indeed, we cannot keep the joy of the faith to ourselves; we must pass it on.
Pope Benedict XVI