Can you imagine a world without science? You wouldn’t have to worry about being late to work or finding your car keys because, well, jobs and cars wouldn’t exist. You would be living in a cave or a rudimentary built shelter, at best, wondering whether you’ll be able to hunt something for your next meal, or get killed and become some wild animal’s next feast in the process. The moment that early humans decided to take action into securing their survival marked the birth of science, as that’s the moment when they started asking themselves two vital questions about the world surrounding them: “How?” and “Why?”.
Basically, that’s exactly what science is about: understanding how things work and why, and the answers science gave us so far allowed us to survive, ensure our survival and improve our lifestyle in the process, so I don’t think it’s exaggerated to say that science is the most important element of our existence.