求一篇关于我最喜欢的老师的英语作文，300至400词左右，谢谢

My favourite teacher
In my life,there is a person that I will never forget,that's my favourite teacher.He is a little old with a pair of glasses and he is in short hair.He was very strict with us but he was friendly at the same time.Once,he gave me encouragement when I lost my faith.When I made progress in studying,he told me not to guard against conceit and rashness and keep on studying hard.However,he is retired at present,I will never forget him.He is a lighthouse when I feel there is no royal road to learning.