"An optimist is a driver who thinks that empty space at the curb won't have a hydrant beside it"

This quote by Jules Renard is a metaphor for optimism. An optimist is somebody who looks at a situation with a favorable outlook, thinking that the very best result is possible. In this case, the optimist is a chauffeur who is looking for a parking spot. Regardless of the truth that there is a void at the curb, the optimist believes that there won't be a hydrant next to it, suggesting that they can park there. This optimism is a method of looking at the world that allows the optimist to believe that the very best outcome is possible, even when the odds are against them. This quote is a pointer that optimism is an effective tool that can assist us to accomplish our goals, even when the odds are against us.