| Name | Date | Nationality | Profession | Quotes |
|---|---|---|---|---|
Alexander von Humboldt
|
1769 – 1859 | German | 13 | |
Alfred Russel Wallace
|
1823 – 1913 | British | 12 | |
Charles Darwin
|
1809 – 1882 | British | 18 | |
Georges Cuvier
|
1769 – 1832 | French | 28 | |
Georges-Louis Leclerc, Comte de Buffon
|
1707 – 1788 | French | 23 |