Aquam igne et aqua haurio.

 

Aquam igne et aqua haurio is the clever motto inscribed above the door of the former Perth Waterworks. The 1832 neo-classical building housed a steam engine and a large tank to supply fresh water to the city of Perth. It is now the Fergusson Gallery. The motto translates as: "I draw water by fire and water."

Aquam is accusative and is the object of the verb haurio. lgne and aqua are both in the ablative and mean respectively by fire and by water.