The alchemical phrase "in sterquiliniis invenitur," or "in filth it will be found," has a deeper meaning that goes beyond the simple observation that valuable things can often be found in dirty or undesirable places. In the world of alchemy, this phrase suggests that the key to transforming base metals into gold can be found in the most unlikely of places. It encourages the idea that the thing we need most to achieve our goals is often found where we least expect it.