The original text comes from "The Tall Office Building Artistically Considered" by Louis Sullivan. I've edited down the text considerably to reveal what I feel are the best parts.
All of these critics and theorists agree, however, positively, unequivocally, in this, that the tall office building should not, must not, be made a field for the display of architectural knowledge in the encyclopaedic sense; that too much learning in this instance is fully as dangerous, as obnoxious, as too little learning; that miscellany is abhorrent to their sense …
To this latter folly I would not refer were it not for the fact that nine out of every ten tall office buildings are designed in precisely this way, in effect not by the ignorant, but by the educated. It would seem indeed as though the "trained" architect, when facing this problem, were beset at every story, or at most, every third or fourth story, by the hyst