"Fernando Pessoa is the least known of the masters of twentieth-century poetry. From his heteronymic passion he produced, if that is the word, two of our greatest poets. Alberto Caeiro and Álvaro de Campos, and a third, Ricardo Reis, who isn't bad. Pessoa is the exemplary poet of the self as other, of the poem as testament to unreality, proclamation of nothingness, occasion for expectancy."
January 1, 1970
https://en.wikiquote.org/wiki/Fernando_Pessoa