Recent studies have shown that birds use different types of sounds to communicate their intentions, using their calls as if they were words. It is thought that human beings too, before we had languages, made a variety of different sounds in order to communicate. These various different sounds evolved into languages. Just as different species of birds have different ways of singing, it is thought that human languages have developed and become different depending on ethnicity and local environment. It can be assumed that how people think and feel about each different location is reflected in the process of language formation. You could say that the Japanese language absorbed a Japanese way of thinking as it developed as a language and reached its present form. Japan is an island country with a mild climate and a population that is mostly ethnically homogenous, factors that had made it less susceptible to foreign influences. Such an environment is suitable for the development of agriculture and, as a result, tribalism. This means that people come to believe that the best way to survive is through cooperation and coexistence. This Japanese way of thinking has created a humble character that prioritizes conflict avoidance, giving rise to words that show consideration for others such as “Osewa ni nari masu” (I’m honored to be helped by you). Japanese people use a lot of aizuchi (conversational responses) which indicate that we are closely following what the other person is saying, and we omit words that the other person can guess at without us mentioning them. It can be said that these characteristically Japanese expressions were also created by the Japanese environment.