2 Metaphors for theorist

The first Chinese theorists of music who occupied themselves with this problem were Ching Fang (77-37 B.C.) and Ho Ch'êng-t'ien (A.D. 370-447).

A certain new theorist, who very innocently fogs himself and his credulous readers with a deal of impertinent pedantry, after denouncing my doctrine that to before the infinitive is a preposition, appeals to me thus: "Let me ask you, G. B.is not the infinitive in Latin the same as in the English?

2 Metaphors for  theorist