operating with two alphabets [uppercase and lowercase] is particularly awkward when capital letters occur comparatively seldom, as in the english language. it seems incomprehensible to carry a huge apparatus for such limited use.
printing with one alphabet makes for more harmonious makes for more harmonious typography than mixing the different styles of two alphabets. if typographic emphasis is desired at the beginning of sentences, for example, bolder type or wider spacing could serve the purpose.
THE CAPITAL LETTERS OF ANCIENT TIMES, ALTHOUGH MORE HARMONIOUS IN THEIR CONCEPT, ARE DIFFICULT TO READ IN A LONG TEXT
the lower case alphabet is, for that reason, the foundation for the “universal type” and capital letters have been omitted.