一道英语问题Everyone must receive education from teachers at schoo

一道英语问题
Everyone must receive education from teachers at school or at university.Think about all the teachers who have taught you.Can you find which one is your favorite?And the reason?Are the teachers you liked best also the ones who were the most excellent teachers with good qualities?Before you read the following paragraphs,think about what qualities make a teacher extraordinary.
Most people will say that the several important qualities of a teacher are that he should love his students,that he needs to have an expert knowledge of his subject,and that he should devote himself to his jobs whole-heartedly.All of these can be the good qualities of a teacher but not all.
As we all know,it is impossible for a teacher to love every one of his students that he teachers in his life.Teacher must try their best to make most of their students interested in the subject so that they are able to teach themselves in the future.This requires teachers to master many teaching skills,which include how to control a class and so on.Teachers have to spend much time and energy on their work.However,students also imitate many things of the teacher,so it is also important for teachers to be well-balanced people with interest outside their schoolwork-family,friends,hobbies etc.
用约30个词概括短文的要点.(用英文概括)

Teachers play an important role in students' education.They should have some qualities.On one hand,they have to be professional in their own field.On the other hand,they should set up a good example to their students.