Everything we do has a cost. The cost may include money, time, physical or mental exertion, or a toll on our emotional health and well-being. Sometimes, the cost of our actions is imposed on the people we love. Failing to forgive others exacts a tremendous cost.

If someone crashes into our automobile, there is not only a monetary cost for repairs but also the costs of inconvenience, physical trauma, frustration, and time exerted in making phone calls, filing insurance claims, and obtaining police reports.

School shootings remain a terrifying staple of news in the U.S. The most recent shooting occurred in a Maryland high school on Tuesday, March 20. Two students were critically injured before the shooter himself was killed (Chicago Tribune, March 20, 2018).

As regional and global tensions increase, there is growing concern humanity could annihilate itself by nuclear war. In a recent interview, SpaceX and Tesla founder Elon Musk commented, “Humans must prioritise the colonisation of Mars so the species can be conserved in the event of a third world war….