SAGREDO: Ah, that provides little solace. Pray tell, who in their right mind would traverse the market with a half ounce seeking a cart load provisions? Including the cart!

SIMPLICIO: Truly, how am I to procure a simple loaf of bread when burdened with the weight of half an ounce of gold? Such a cumbersome transaction!

SALVIATI: Allow me to enlighten you with the concept of "fungibility."