Nigeria, Sept. 17 -- I have lived in the United Kingdom for more than four years in total as an adult. And before reaching adulthood, I had spent some time there and later, through travel and work, I have continued to engage with people in developed countries. Today, most of my colleagues are based in those societies, and I interact with them daily. These experiences have forced me to reflect deeply on the differences between life in developed and underdeveloped nations. One of the most striking differences is a mindset that is almost invisible in developed countries but very common where I come from - Nigeria - and, by extension, in many underdeveloped societies. It is the belief that in every quarrel or disagreement, one must be careful...