[Mr Ramsbotham]

For my part I'd add Fraser's The Golden Bough, and Solzhenitsyn's The Gulag Archipelago. Also, Freud's The Interpretation of Dreams. Those works significantly influenced my worldview.

[Borges]

Freud is on there.

As to Huxley, he talked about Zamyatin's 'We' from 1921 as an obvious source for both Orwell and Huxkley and a superior work of art to 1984 or BNW but since it is so little known or translated he chose the novel with the widest reach.