Abstract
There are at least five types of innocence. Innocence of various, but not all, types can be possessed, then lost, and later still regained or even surpassed. The most important of these I call “mature innocence,” which is a confirmed state of character, attained reflectively and by an individual’s exercise of effort and agency, that is highly resistant to sin and moral wrongdoing. Mature innocence can be either a secular or a specifically Christian ideal. To surpass mature innocence is to attain a related ideal of purity of heart.