"You, boys--and you, girls--and we older men and women, are just like the aeroplane in one great particular. In the Christian life, in our work, in our study, in our efforts to do good, we can never hope to succeed and progress if we let anything stop us in the way. How truly does all this apply to the Sunday School. The stand-still boy and the stand-still girl never get anywhere. The stand-still Sunday School is 'a dead one.' Life in Sunday School means movement, forward and upward. If the flying machine stops, it comes crashing to the earth. If the Sunday School stops, you will also 'hear something drop.' And the same thing is true of us as Christians. Praying and psalm singing are not enough. Backsliding begins when Christians stop working--stop going forward. If we would _grow_, we must _go_! And '_keep a-goin'_!" THE PLUM TREE --Mothers' Day --Training The Responsibility of Motherhood--A Lesson From the Tree Nursery. THE LESSON--That constant training and cultivation are necessary to the attainment of excellence in plant life; so, also, the quality of the child depends upon the home training. Mothers' Day, usually observed on the second Sunday in May, is becoming valued more and more in the Sunday School as the years go by. Miss Anna Jarvis, of Philadelphia, is said to have originated the idea in her effort to commemorate the anniversary of the death of her mother. She saw, in the wearing of a carnation on a selected day, a silent and beautiful tribute to motherhood throughout the world. The custom is usually followed by the wearing of a white carnation in memory of the mother departed, while a colored flower is worn for the mother living. The school decorations should be worked out in a manner appropriate to the day and its significance. The present talk deals specifically with the responsibility of motherhood. ~~The Talk.~~ "We have come today with our hearts filled with tender memories of the mothers who have gone--memories as sweet as these beautiful flowers, whose whiteness tells of their purity; whose form brings back the thought of their beauty; whose fragrance tells again of their love, and whose enduring qualities remind us of their faithfulness and constancy. "But today I want to speak especially of the mothers who are still with us, those whose hair is tinged with silver, and especially of those other younger mothers who are today the close companions of their children.