Personality Adjustment for Conversation : Page 162
This determination, reconfirmed frequently, will by the grace of instinct cause a person to avoid most of the pitfalls of conversation. It will intuitively propel you toward those things which will increase the edge of liveliness in your talk, which will make you not only negatively but positively an agreeable conversationalist.
Along with this determination to talk more for other's than for your own pleasure, the constant resolve to practice a premeditated tactfulness is necessary. Tact is, of course, comprised in St. Paul's injunction always to be gracious, and it is also implied in the policy of talking to please others more than one's self. But this virtue requires more than good will. It needs the habit of constant forethought. It must be founded on the acquired soul characteristic of sympathizing with others to such an extent as to see things from their point of view.