Project Gutenberg bans anonymisers, proxies, VPNs and Tor
pastebin.com
pastebin.com
The 24 hour download limit could possibly be defensible if they explained it -- for example they might encourage you to cache a copy of a book you'd like rather than refetch it every time. But they don't bother to explain.
I agree with coding4all: avoid this crap by simply going to the Internet Archive.
> If you think that TOR gives you the anonymity you want, go here for a hidden mirror of our text files: http://libraryhvopfiqnp.onion/gutenberg/
That way a free library of public domain books could be hosted without server costs by the people for the people.