"A man will be imprisoned in a room with a door that's unlocked and opens inwards; as long as it does not occur to him to pull rather than push"

This quote by Ludwig Wittgenstein is a metaphor for the principle of self-limitation. It recommends that individuals might discover themselves trapped or limited by their own ways of believing and viewing a circumstance. The guy in the space is not really sent to prison by the door, as it is unlocked and can be opened with an easy action. However, the guy's failure to think about the choice of pulling the door instead of pressing it causes his own jail time. To put it simply, his minimal viewpoint and lack of creativity prevent him from acknowledging an easy service to his issue. The quote motivates people to open their minds and consider alternative services rather than being trapped by their own beliefs or presumptions.