This is not because he is naturally cool-tempered but because he realizes that any show of anger or irritation would make the pupils feel he held them in contempt, and further erode their already fragile self-confidence.
每次上課前五分鐘，學生們早就在教室裡等著了。下課時，他們都不願意離開教室，下課鈴一響，這些孩子就匆匆忙忙，神神秘秘的趕快把教室門關起來，還用紙貼住玻璃窗。初次看到他們這種舉動時，覺得又奇怪，又好笑。