To begin with clear and self-evident principles, to advance by timorous and sure steps, to review frequently our conclusions, and examine accurately all their consequences; though by these means we shall make both a slow and a short progress in our systems;
Argiak eta berez ebidenteak diren printzipioetatik hastea, pauso arretatsu eta seguruz aurrera egitea, gure konklusioak maiz berrikustea eta hauen ondorioak zehazki aztertzea: