A Treatise Concerning the Principles of Human Knowledge

"A Treatise Concerning the Principles of Human Knowledge" by George Berkeley is a philosophical examination from the 1700s tackling how we know what we know. It kicks off by pointing out problems with old ways of thinking and then looks at what's real by diving into ideas and how our minds see them. It makes the case that things don't exist on their own but are connected to our experiences and what we think. The author wants to clear up confusion in philosophy, suggesting that some errors come from assuming there can be abstract ideas not tied to what we see and sense and then introduces his big idea: things exist because they are perceived.