Quotes from Peter Kreeft

There is no such thing as an involuntary sin.

A fundamental principle of Catholic theology is that grace perfects nature rather than setting it aside; and that means that the Christian life is not a two-layer cake, the supernatural simply added on to the natural. It transforms the natural but by perfecting it, not by demeaning it.

Christ, the new Moses, liberates His people, the Church, the new Israel, from the spiritual slavery of sin and from the power of the world (symbolized by Egypt), which is under the dominion of Satan (symbolized by Pharaoh), through the sea (death) and the wilderness (Purgatory) to the promised land (Heaven).

Sow a thought, reap an act. Sow an act, reap a habit. Sow a habit, reap a character. Sow a character, reap a destiny.

Every good choice makes the next one easier and more delightful.

Furthermore, the most popular modern answer to the question of what it means to be a good person is to be kind. Do not make other people suffer. If it doesn't hurt anyone, it's O.K. By this standard, God is not good it he lets us suffer. But by ancient standards, God might be good even though he lets us suffer, if he does it for the sake of the greater end of happiness, perfection of life and character and soul, that is, self.

nothing else can ever cure our sick world except saints, and saints are never made except by prayer.

Right Response to Reality—the Three R's—is the fundamental principle of morality, of sanctity, and of sanity.

The good Jew, like the good Christian, sees behind the law to the Lawgiver, whose will is perfect love.

the will can obey the passions instead of the reason, and this accounts for the fact that we often know what is good and what is evil—even what is good for us, what is truly best for us, for our own ultimate happiness—and yet choose evil over good, choose what we know is not in our own best interests. We can choose misery over joy if our will, led by our passions, commands our mind to focus on the short-range pleasures and ignore the long-run miseries.

We pray to obey God, not to "play God". We pray, not to change God's mind, but to change our own; not to command God, but to let God command us. We pray to "let God be God". Prayer is our obedience to God even when it asks God for things, for God has commanded us to ask (Mt 7:7).

When the worldly toys in which we foolishly place our hopes for happiness are taken away from us, our foolishness is also taken away, and this brings us closer to true happiness, which is not in worldly things but in wisdom.