It's important to remember that Charles Darwin's theory of natural selection was a groundbreaking idea that built upon the work of many other scientists. However, there were some scientists who did not significantly influence Darwin's thinking.

Here are a few examples:

* Aristotle: While Aristotle was a keen observer of nature, his ideas about the natural world were based on teleology, the belief that everything has a purpose or goal. This is fundamentally different from Darwin's view of natural selection, which is driven by random variation and environmental pressures.

* Linnaeus: Linnaeus developed the system of binomial nomenclature for classifying organisms, which is still used today. However, his work focused on taxonomy, the classification of species, and did not directly address the mechanisms of evolution.

* Lamarck: Lamarck proposed a theory of evolution based on the inheritance of acquired characteristics. While he was incorrect, his work did contribute to the broader discussion of evolutionary change, prompting Darwin to explore alternative explanations.

It's also worth noting that:

* Alfred Russel Wallace independently developed the theory of natural selection, but Darwin's extensive research and publication ultimately gave him more recognition.

* Charles Lyell's work on uniformitarianism, the idea that geological processes happen gradually over time, provided Darwin with a framework for understanding the vast timescale required for evolution.

In conclusion, while many scientists contributed to the development of evolutionary theory, some did not directly influence Darwin's ideas on natural selection. It's important to understand the historical context and the various influences that shaped Darwin's groundbreaking work.