Posterity will know as little of me as I know of posterity.
For duty, duty must be done; The rule applies to everyone.
I am the very model of a modern major general
Posterity shall know of me even less than I shall know of posterity.
Merely corroborative detail, intended to give artistic verisimilitude to an otherwise bald and unconvincing narrative.
If you're anxious to shine in the high aesthetic line as a man of culture rare, you must get up all the germs of the transcendental terms, and plant them everywhere.