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 XVIGod is not solitude, but perfect communion. For this reason the human person, the image of God, realizes himself or herself in love, which is a sincere gift of self.
Pope Benedict XVIThe Gospel purifies and renews, it bears fruit, wherever the community of believers hears it and receives God’s grace in truth and charity. This is my confidence, this is my joy.
Pope Benedict XVIPraying actualizes and deepens our communion with God. Our prayer can and should arise above all from our heart, from our needs, our hopes, our joys, our sufferings, from our shame over sin, and from our gratitude from the good. It can and should be a wholly personal prayer.
Pope Benedict XVIMany people perceive Christianity as something institutional - rather than as an encounter with Christ - which explains why they don't see it as a source of joy.
Pope Benedict XVIFrom the point of view of the Christian faith, man comes in the profoundest sense to himself not through what he does but through what he accepts. He must wait for the gift of love, and love can only be received as a gift... One must wait for it, let it be given to one. And one cannot become wholly man in any other way than by being loved, by letting oneself be loved... If he declines to let himself be presented with the gift, then he destroys himself.
Pope Benedict XVI