Eggs.
Eggs have an equality about them, I know worked on a farm
collected them put them on a tray, each one had thirty eggs
they all had the same size, but some eggs had shells slightly
darker than others boiled they tasted the same.
There is a possibility that someone once said brown eggs
where somehow inferior, one had a better chance find two
yolks in a white shelled egg, we ended up with two prices
for eggs, the white ones for breakfast, the brown ones for
omelette. When I was an officer in the merchant navy I bought
brown eggs mostly because they were cheaper.
This has come to an end eggs are now mixed there is no choice,
but in the end they all taste the same.