There can be no proper motive for hurting our neighbour, there can be no incitement to do evil to another, which mankind will go along with, except just indignation for evil which that other has done to us.
 Adam Smith, The Theory of Moral Sentiments (1759). copy citation

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Author Adam Smith
Source The Theory of Moral Sentiments
Topic evil mankind
Date 1759
Language English
Reference
Note
Weblink https://en.wikisource.org/wiki/The_Theory_of_Moral_Sentiments

Context

“The man who is barely innocent, who only observes the laws of justice with regard to others, and merely abstains from hurting his neighbours, can merit only that his neighbours in their turn should respect his innocence, and that the same laws should be religiously observed with regard to him. CHAPTER II. Of the sense of Justice, of Remorse, and of the consciousness of Merit. There can be no proper motive for hurting our neighbour, there can be no incitement to do evil to another, which mankind will go along with, except just indignation for evil which that other has done to us. To disturb his happiness merely because it stands in the way of our own, to take from him what is of real use to him merely because it may be of equal or of more use to us, or to indulge, in this manner, at the expence of other people, the natural preference which every man has for his own happiness above that of other people, is what no impartial spectator can go along with.” source