In Memoriam: Lynn Margulis (Introduction)
He doesn't by chance mention a translation or meaning of the letters 'et' did he? It's a word that is not translated into English, but it is found over 11000 times in the original Hebrew.
et means 'also' and 'and' as I look at his translations. My Hebrew lexicon only gives 'also'. Apparently no important meaning, just a connection between important words.