Category Archives: ethics

Why is the morality of lying important?

I’ve written several long posts on the topic of lying, with several more planned. Numerous commentators have also written on this topic, some repeatedly. Why is lying such an important moral issue? In all probability, most actual lies that people … Continue reading

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An error in the definition of lying

The teachings of the Catechism of the Catholic Church must be read and interpreted in the light of Tradition, Scripture, and the other documents of the Magisterium. Read in isolation, the CCC is easily misunderstood because it is so terse. … Continue reading

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When is lying a mortal sin?

Lying is intrinsically evil. Every intrinsically evil act is always immoral because the act is, by its very nature, contrary to the moral law. But not every intrinsically evil act is a mortal sin. Some intrinsically evil acts are venial … Continue reading

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Is Lying Always Wrong? part 4: deliberate choice

Saint Augustine, in On Lying, considers the difficulty of defining lying when a false assertion is incorrectly believed to be true, or a true assertion is incorrectly believed to be false. If a person asserts a falsehood, but he believes … Continue reading

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Anonymous Teachers of Doctrinal Error

Many Catholics are now using the internet to spread heresies and innumerable distortions of true doctrine. Many Catholics, unfit to teach because they have not first learned, have exalted themselves as teachers of the Faith online. Many are now teaching … Continue reading

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The Distinction between Lying and Mental Reservation

Lying is the direct and deliberate deprivation of truth from an assertion. It is the intentional choice of an act inherently directed at asserting what is false. Lying is intrinsically evil and therefore always immoral. Mental reservation, properly defined and … Continue reading

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Which Papal Encyclical has been most thoroughly rejected by Catholics?

The faithful sons and daughters of the Church should accept the teaching of Sacred Tradition and Sacred Scripture and the Magisterium. We should not reject any encyclical in which the Magisterium teaches from Tradition and Scripture, or from natural law. … Continue reading

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Errors on Lying at the New Theological Movement blog

In this post, It is a sin to lie, even to Planned Parenthood, a Catholic priest, posting under the pseudonym ‘Reginaldus’, discusses Catholic doctrine on lying. The main point of the post is that lying is always immoral. This point … Continue reading

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Unintended Bad Consequences

One common error in Catholic ethics is the claim that an act cannot be made immoral by a bad consequence, if that consequence is unintended. On the basis of this claim, unintended bad consequences, no matter how severe, are incorrectly … Continue reading

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Ethics by Example

There is a certain erroneous approach to ethics that might be called ‘ethics by example’. In this approach, an intrinsically evil act is said to be sometimes moral, if anyone can cite an example of that type of act that … Continue reading

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Ethics without Sacrifice

The latest trend in Catholic ethical thinking is what might be called ‘ethics without sacrifice’. In this approach to morality, any moral analysis is said to be incorrect if it implies that one must suffer in order to avoid sin. … Continue reading

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Is Lying Always Wrong? — part 3: Saint Augustine

It is often incorrectly stated that St. Augustine defined lying as follows: ” ‘A lie consists in speaking a falsehood with the intention of deceiving.’ ” This text is a quote in the Catechism of the Catholic Church, n. 2482; … Continue reading

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