“But what is most interesting in respect of this progressive deterioration of that most important part of their common presence is the sorry farce that results, namely, that those contemporary three-brained beings there who can still manage to distinguish the mentioned miserable fraction of the total number of tonalities – namely, merely forty-nine – look down with superior self-conceit and with an admixture of the impulse of pride upon those other beings who have lost the capacity to distinguish even this miserable number, as upon beings with abnormal deficiency in that said organ of theirs; and they call them diseased, afflicted by what is called ‘Daltonism’. BTG XXX

“Always remember that any one of them, however insignificant he himself may be in essence, looks down, owing always to his self-conceit ensuing from this particular property, with contempt upon the conduct and actions of others, especially if their conduct and actions sharply contradict his own subjectively established point of view, and in these cases he, as I have already said, usually becomes inwardly sincerely offended and indignant. BTG XLIII