David Hume wrote in his famous book, “An Enquiry Concerning Human Understanding,” that our thoughts are based on what we have seen before. Like imagining the golden mountain, it’s made of gold and the mountain we’ve seen before. The book goes much deeper and is considered a key work in philosophy. I don’t do it justice by highlighting this idea out of context, but still, I do.

Have you ever wondered where your thoughts come from? Do they just pop up out of nowhere? Is there something inside you that creates these thoughts from nothing? Where were your current thoughts when you were 5 years old? Do we piece our thoughts together over time? Are we just combining bits of what we’ve collected into our thoughts? Are we like the modern AI, stringing words together because they have fitted together before in our memories?

I think it’s not easy to be an original thinker. No matter what we do, we must use what we’ve learned to develop our own ideas, and only exceptional people can combine their knowledge into something truly original. It’s no coincidence that thinkers like Plato or Aristotle are still studied. They drew such deep conclusions from their experiences that hardly anyone since has matched them; we can at best follow their path and see if we can reach similar conclusions.

Imagine browsing a bookstore or social media. It seems everyone has an opinion, often equating it with that of someone who has dedicated their life to developing their views—someone who has faced all the dead ends and moved on. Climate change is a good example of an issue where many seem to have a clear understanding, even though experts struggle to fully grasp it and find solutions. As if they, the modern opinionated citizen, know the answer without the necessary experience.

We can’t imagine a golden mountain without first having seen a mountain and gold. The opinionated person can dismiss climate change without studying biogeochemical cycles, ecological and agricultural systems, or human-environment interactions. Do they question their dentist or mechanic with the same confidence?

It’s humility we need. I don’t know much about climate change, so I trust the experts—just like I listen to my doctor or trust Hume more than myself when he talks about our mind. 

What a peculiar privilege has this little agitation of the brain which we call ‘thought’.
David Hume