<P> A common interpretation of the saying is that wrongdoings or evil actions are often masked by good intentions; or even that good intentions, when acted upon, may have unintended consequences . A simple example is the introduction of an invasive species, like the Asian carp, which has become a nuisance due to unexpected proliferation and behaviour . </P> <P> Another meaning of the phrase is that individuals may have the intention to undertake good actions but nevertheless fail to take action . This inaction may be due to procrastination, laziness or other subversive vice . As such, the saying is an admonishment that a good intention is meaningless unless followed through . </P> <P> Moral certainty can be used to justify the harm done by failing policies and actions . Those with good intentions believe their practices are good for the group; it is self - evident to them . They justify collateral damage in the belief they do a greater good . The Nazi concentration camps were created to hold so - called "racially undesirable elements" of German society . The GULAG system was introduced in order to isolate disloyal elements not contributing to the dictatorship of the proletariat . The Inquisition was established to eradicate heretics in religious states . The harm done is clearly seen, and acknowledged, but is written off as a' price worth paying' . </P> <P> On a personal level, taking a subjectively "good action" can land one in a horrific emotional and / or physical state of being, e.g., a soldier goes off to war to fight for the subjective good of their country and ends up with post-traumatic stress disorder . </P>

The road to hell is paved with good intentions bible