"While all deception requires secrecy, all secrecy is not meant to deceive"

This quote by Sissela Bok suggests that while deceptiveness and secrecy often go together, not all secrecy is planned to trick. In other words, there are times when secrecy is necessary and suitable, but it does not necessarily suggest that somebody is trying to trick. For example, an individual might keep a trick out of respect for another person's privacy, or to secure somebody from damage. In this case, the secrecy is not indicated to trick, but rather to secure.

Secrecy can likewise be utilized to secure an individual's own interests. For instance, a person may keep a secret to prevent humiliation or to maintain control over a scenario. In this case, the secrecy is not meant to deceive, however rather to safeguard the person's own interests.

Ultimately, this quote by Sissela Bok recommends that while deception and secrecy frequently go hand in hand, not all secrecy is meant to deceive. There are times when secrecy is required and suitable, and it does not always suggest that somebody is trying to deceive.