When the Canadian Pacific
railway was being constructed,
the three main nationalities
doing the labouring, were Irish,
Italians and Chinese.

During some stretches, the Irish
were laying more rails than the
other two combined.

This statistic became the yardstick
for measuring the energy of potatoes,
pasta and rice.

Potato and rice bread exist, but no
such thing as pasta bread.

So, in answer to the question of

Why do we always get two slices
of bread with pasta ?

It is because Napoleon said, at the
battle of Marengo, in Italy:

" An army marches on its stomach ".