Rules.

Cartier-Bresson, Rome, 1952

Come boy, and pour for me a cup

Of old Falernian. Fill it up

With wine, strong, sparkling, bright, and clear;

Our host decrees no water here.

Let dullards drink the Nymph's pale brew,

The sluggish thin their blood with dew.

For such pale stuff we have no use;

For us the purple grape's rich juice.

Begone, ye chilling water sprite;

Here burning Bacchus rules tonight!

Catullus