Potter is mocked by a faculty member for the idea that there is evil in the world from which even children need to learn to defend themselves by the actual practice of doing so rather than familiarity with theory.

All our good is apparently from God, because we are first naked and holy without any good, and afterwards enriched with all good.

We will be able to depart this life with the quiet peace-giving notion, that we were permitted to contribute to the happiness of many who will live after us. In our long lives we endeavored to unfold the collective consciousness. In our lives we have known hell and heaven; the final balance, however, is that we helped pave the way to dynamic harmony in this earthly house. That, I believe, is the meaning of life.

Thou hast gone on in all thy life hitherto, ever since thou wast born, in a continual opposition to God Himself, unto the infinite Lord, the eternal first being of all the world; thy life hath been nothing but enmity to this God: thou hast as directly opposed, and striven against, and resisted Him, as ever man did oppose, and resist, and strive with another man, and this thou hast done in the whole course of thy life: certainly there is more in this to humble a man than anything that can be spoken to shew him the evil of sin.

Although terrifying, the evil ghost will probably pose no real danger to you or your family. On the other hand, if you have a demonic infestation, your entire household is in very real danger. A demonic entity will not usually confront you or induce you to flee the home. Because, unlike the evil ghost, the demon does not actually want you to leave. On the contrary, it wants you to stick around so it can destroy your life and sully your soul from the inside.

Cheer up! You're a worse sinner than you ever dared imagine, and you're more loved than you ever dared hope.