Read it through once

The patience and the humility of the face she loved so well was a better lesson to Jo than the wisest lecture, the sharpest reproof. She felt comforted at once by the sympathy and confidence given her; the knowledge that her mother had a fault like hers, and tried to mend it, made her own easier to bear and strengthened her resolution to cure it; though forty years seemed rather a long time to watch and pray, to a girl of fifteen.