Quote by Henry Louis Gates
If you share a common ancestor with somebody, you're related to them. It doesn't mean that you're going to invite them to the family reunion, but it means that you share DNA.

Summary
This quote suggests that if two individuals share a common ancestor, they are biologically related due to the inheritance of shared DNA. However, it highlights that this biological connection does not necessarily imply a close familial or social relationship, like inviting someone to a family reunion. The quote emphasizes the importance of recognizing the genetic ties between individuals while acknowledging that the depth and closeness of their bond may vary.