One of the surest ways of making a friend and influencing the opinion of another is to give consideration to [his or her] opinion, let [him or her] sustain a feeling of importance.
"The Sales Advantage: How to Get It, Keep It, and Sell More Than Ever".
![One of the surest ways of making a friend and influencing the opinion of another is to give consideration to [his or her] opinion, let [him or her] sustain a feeling of importance.](http://cdn.quoteddaily.com/images/dale-carnegie/one-of-the-surest-ways-of-making-a-friend-and-influencing-the-opinion-of-another-is-to-give-consideration-to.jpg)