https://www.mentalfloss.com/article/63389/roosevelts-man-arena
https://www.academia.edu/31699347/ATOM_AND_ARCHETYPE_-_Pauli-Jung_Letters
https://www.goodreads.com/book/show/34678366-on-disbelieving-atrocities
https://webusers.imj-prg.fr/~leila.schneps/grothendieckcircle/Letters/GS.pdf