Educator-the most popular and extensive title; Sir-the oldest honorific title; Master-the oldest honorific title; Faculty-the most popular name in Hong Kong, Taiwan and other regions; Gardener teacher-the most unpretentious praise; Candle-the warmest and moving title; Mother-the most touching nickname; Spring silkworm-the purest title; Spring rain-the most vivid and silent name; Ladder-the proper name of the highest evaluation; A willing ox-China's most distinctive metaphor: Coach-a person who guides, trains and supervises others and strives to complete a mission or task; Engineer of human soul-the most philosophical title.