To disagree, one doesn't have to be disagreeable.
Barry Goldwater

We may disagree on some things, but we can do so without being disagreeable.
Christine Gregoire

When women are encouraged to be competitive, too many of them become disagreeable.
Benjamin Spock

When you run into someone who is disagreeable to others, you may be sure he is uncomfortable with himself; the amount of pain we inflict upon others is directly proportional to the amount we feel within us.
Sydney J. Harris

Whenever anything disagreeable is happening in the country, Vera Cruz is sure to get its full share.
Edward Burnett Tylor

Yes, we are all different. Different customs, different foods, different mannerisms, different languages, but not so different that we cannot get along with one another. If we will disagree without being disagreeable.
J. Martin Kohe

You do not have to do everything disagreeable that you have a right to do.
Judith Martin

You should carefully study the Art of Reasoning, as it is what most people are very deficient in, and I know few things more disagreeable than to argue, or even converse with a man who has no idea of inductive and deductive philosophy.
William John Wills