Have you ever changed your job?
Why or why not?
Yes, I have.
I worked for a few cram schools in Tokyo and a private high school in Saitama prefecture as an English teacher.
After that, I started my own English-language classroom in Nagoya 18 years ago.
I think a self-employed business is good because I can freely decide on the content of work
and I feel less stressed when I take full responsibility for the results.
～するモチベーションが高まる ：The motivation to do is boosted.
無数の、ありとあらゆる～ ：all kinds of ～
混血の人々 ：mixed-race people
Ｓは、その存在理由を失う ：S loses one's raison d'etre.
民衆レベルから ：from the grass-roots level
魅力的な家 ：favorable house
One of your friends has tried ten different types of diets.
But she cannot lose weight and is very frustrated.
What would you say to her?
I know you've tried every diet and got enough exercises in earnest.
I'm wondering if there is something medically wrong with you.
I think you may need an evaluation by a specialist.
What do you think about that?
人に～するよう義務付ける ：obligate 人 to do
短期的には ：In the short run,
国際結婚する ：have an international marriage
～の抑止力になる ：act as a deterrent against ～
戦争をする ：wage war （無冠詞）
～の反対運動をする ：wage a war against ～
