Before we talk about how to start writing a compare and contrast essay, we must repeat once again what kind of literary genre it is. Any textbook tells about the same thing: an essay, as a genre of literature, originated during the Renaissance.
If you cannot decide what to write, it means that the topic has not been studied enough by you or is not at all unusual. The question of how to start an essay is directly related to understanding the topic, so even before you begin, you must decide what you can and want to write about. The original essay may be large and the arguments vague, but all the thoughts you have on this topic should be written down. Do not be afraid of the words, their number, as when writing a large volume, the question closest to you will come out on its own.
How to start
The structure of the essay is free; arguments can be made to theses that will be formulated later so that you can write whatever you feel. The beginning may be completely arbitrary, but the more you write, the clearer the question becomes.
This is a real job, it is impossible to write something worth an hour if you are not a genius of literature. Do not be afraid to get into the wilds of your chosen topic, perhaps there, in the depth of considerations, is something that nobody could see before.
There is another way to start a piece. You can choose a controversial aphorism. But again, your knowledge on this topic should be more profound than at school or university. In the process of writing an essay, you need to express your opinion about the aphorism, and the argument that you will use should be weighty.
One should not forget that an essay is not a novel, the volume of which is very small. This means that all the expressions that you will use should be accurate, symbolic, and at the same time, you should be able to show your unique vision of the topic under discussion.