人们为了保护自己不受伤害，会伤害他人。
人は、自分が傷つかないために、他人を傷つける。
The study of L-functions is a reflection of the unity of mathematical knowledge.
The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it.
你必须先跌倒才能飞翔。