I need A good quote for a project! its for a Photoshop Project, in which I need to show the essence.?

I need to show the abstract ideads behind the quote with objects and such, any one knnow of a good quote for this time of thing?I need A good quote for a project! its for a Photoshop Project, in which I need to show the essence.?
Could you expound on the term essence for me so I know what direction you are going or any description at all.

oil gas