The motto of the AIW is conservata veritate, which translates to "with the preserved truth".
This motto reflects the inclusionist desire to change Wikipedia only when no knowledge would be lost as a result.

Association of Wikipedians Who Dislike Making Broad Judgments About the Worthiness of a General Category of Article, and Who Are in Favor of the Deletion of Some Particularly Bad Articles, but That Doesn't Mean They Are Deletionists

Est omnino difficile iudicare inclusionis meritum cuiusdam rei in encyclopædia cum ratio sciendi quid populi referat incerta sit, sed nihilominus aliquid encyclopædiam dedecet

It is generally difficult to judge the worthiness of a particular topic for inclusion in an encyclopedia considering that there is no certain way to know what interests people, but some topics nevertheless are not fit for an encyclopedia.

This motto reflects the desire of these Wikipedians to be reluctant, but not entirely unwilling, to remove articles from Wikipedia.