The five pillars of Wikipedia are as follows:

1. Wikipedia is an encyclopedia It is an informative source of factual information.

2. Wikipedia content is ideally neutral Authors should strive to write works free of bias and opinions.

3. Wikipedia content is free to access, create, and distribute There are no fees associated with the encyclopedia.

4. Authors and editors behave respectfully towards one another Be open to criticism, welcoming, and kind.

5. Wikipedia is flexible It does not have strict rules and is open to different writing styles.