光前裕后guang qian yu hou
bring honour to one’s ancesters and prosperity to one’s descendants
光前裕后ɡuànɡ qián yù hòu
裕后:为后人造福。 给前人增光彩,为后人造福。形容功绩卓著。glorify one’s fore fathers and enrich one’s posterity, win praises for one’s ancestors and enrich one’s posterity