"He that has eyes to see and ears to hear may convince himself that no mortal can keep a secret. If his lips are silent, he chatters with his fingertips; betrayal oozes out of him at every pore"

This quote by Sigmund Freud recommends that it is impossible for a person to keep a trick. Even if a person does not speak, their body language and actions can still betray them. Freud suggests that secrets are like a poison that seeps out of a person, no matter how hard they attempt to contain it. He suggests that if one has the ability to observe and listen, they can easily find when someone is concealing something. This quote is a pointer that secrets are not easily kept and that it is necessary to be aware of the signs that somebody is not being truthful.