this post is a screenshot of https://news.lettersofnote.com/p/oh-my-god-how-i-do-hate-species-and

see also https://news.lettersofnote.com/p/i-loathe-i-abhor-the-sea-and-all

and https://www.darwinproject.ac.uk/ (where you can search and read the full text of over 15,000 of Darwin's letters)