Read these stanzas from the poem "Keep A-Pluggin’ Away" by Paul Laurence Dunbar. I've a humble little mottoThat is homely, though it's true,—Keep a-pluggin' away.It's a thing when I've an objectThat I always try to do,—Keep a-pluggin' away.When you've rising storms to quell,When opposing waters swell,It will never fail to tell,—Keep a-pluggin' away. If the hills are high beforeAnd the paths are hard to climb,Keep a-pluggin' away.And remember that successesCome to him who bides his time,—Keep a-pluggin' away.From the greatest to the least,None are from the rule released.Be thou toiler, poet, priest,Keep a-pluggin' away. What message is conveyed by both this poem and "Mother to Son"?