He was a teacher, seeing teaching as his vocation, and nothing could boost his confidence as much as excellent students and successful results.

vocation 来自拉丁语 vocare（召唤），词根 voc- 表示"声音、呼唤"，后缀 -ation 表示抽象名词。原指"神的召唤"，现指"天职、使命"，强调对某种职业的强烈使命感。