According to Nancy Duarte's TedX Talk, every presentation should end with a call to action. The world must be described as a new bliss by showing the audience why they should adopt or accept your ideas. It is important because the presentation will be effective, impactful and well-remembered if it was ended in a poetic and dramatic way.
MLA should be right. hope this helps
Karl Marx spent most of his life researching at the British Museum on the nature of class society and the role of the working class in developing its own ideology of socialism whereby society will no longer be run by the bourgeosie but instead, by the advanced elements of the working class to serve the needs of the vast majority of the people, similar to what the government does in Cuba to provide basic free healthcare, education and such conditions as a lower child mortality rate than the US for example. Karl Marx and his partner in Britain, Friedrich Engels believed that the working class was born out of the socialized production of the Industrial Revolution wherein large numbers of workers were concentrated in single factories or mines. They also believed that the new working class was the most scientific class and the strongest class and most numerous in the history of the world and totally capable of forging a new people oriented society. Marx died before the Russian Revolution in 1917.
Old Major, the boar in George Orwell's book, the Animal Farm, exhorted the animals to rebel against their human masters who were oppressing them. He died before he could see the success of the animals in this endeavour.
No one really knows, all I know is I’m going to make the best of it while I’m here, it’s all we got.
