191. In expressing that "in accordance with which" something is done,
takes place, moves, etc., the preposition "laux" is used:
Li agis laux sia opinio,
he acted in accordance with his own opinion.
Mi faros gxin laux bona metodo,
I shall do it according to a good method.
Laux kia maniero li agis?
In what manner did he act?
Mi marsxis laux la strato,
I walked down (or up) the street.
Li iris laux la rivero per tiu vojo,
he went along the river by that road.
Nuboj nigraj kuris laux la cxielo,
black clouds raced along the sky.
Gxi kusxas lauxlonge de la domo,
it lies lengthwise of the house.