You must change nothing in your writing without absolute necessity. If it is necessary， then change with simplicity.
男人学着去爱吸引他们的女人，而女人则学着去吸引他们爱上的男人。
在数学中，提出问题的艺术必须比解决问题更有价值。
La música es el lenguaje universal que nos une a todos.
We must focus on customers and continuously improve the quality of products and services.