C55 Godfather Means to Use a Knife to Kill Someone

Calculating people was a technical work. If one was too slow and was unable to achieve his or her goal, then it would be impossible for him or her to accomplish it. Leaving behind a weakness meant that he or she would be sticking himself in the process as well, so before calculating, he or she had to consider whether or not the plan had any risks and could achieve his or her goal