"It is evident that many great and useful objects can be attained in this world only by cooperation. It is equally evident that there cannot be efficient cooperation if men proceed on the principle that they must not cooperate for one object unless they agree about other objects. Nothing seems to us more beautiful or admirable in our social system than the facility with which thousands of people, who perhaps agree only on a single point, can combine their energies for the purpose of carrying that single point. We see daily instances of this. Two men, one of them obstinately prejudiced against missions, the other president of a missionary society, sit together at the board of a hospital, and heartily concur in measures for the health and comfort of the patients. Two men, one of whom is a zealous supporter and the other a zealous opponent of the system pursued in Lancaster’s schools, meet at the Mendicity Society, and act together with the utmost cordiality. The general rule we take to be undoubtedly this, that it is lawful and expedient for men to unite in an association for the promotion of a good object, though they may differ with respect to other objects of still higher importance."
January 1, 1970
https://en.wikiquote.org/wiki/Thomas_Babington_Macaulay