Moses Clark White,
The Chinese Language Spoken at Fuh Chau
(1862)
“ Chinese Tones. The greatest obstacle to the acquisition of the spoken dialects or languages of China, is peculiar application of the tones, which distinguish words having otherwise the same orthography. It is believed that the tones are not in themselves very difficult, but as they are absolutely essential to the spoken language, and require constant attention to nice distinctions, which are never noticed in other languages, they demand all the attention the student can bestow, to remember always the proper tone of each word, and to enunciate it correctly in speaking. ”
