"Our natures are a lot like oil, mix us with anything else, and we strive to swim on top"

In this quote, Joan Rivers is comparing humanity to oil. Similar to oil, our nature is fluid and adaptable. When mixed with other components or circumstances, we have a natural propensity to rise to the surface area and stay on top. This can be translated as a metaphor for our resilience and decision to conquer challenges and obstacles. No matter what we are confronted with, our natural nature drives us to survive and persevere. It likewise speaks with our capability to adjust and flourish in different environments, much like how oil can blend with different substances and still preserve its buoyancy. In general, this quote highlights the strength and resilience of humanity.