speakとtalk
■speak well[highly] of ~ ~をよく言う
= praise ~
⇔ ■speak ill[badly] of ~ ~を悪く言う
= criticize ~
■so to speak 言わば
= as it were
■speaking[talking] of ~ ~のことと言えば
文頭で
■talk A into B A(人)を説得してBさせる
⇔ ■talk A out of B A(人)を説得してBをやめさせる
Bは名詞・動名詞