“we can be blind to the obvious, and we are also blind to our blindness.”

Source: When Women Were Birds: Fifty-four Variations on Voice

Source: Blindness (1995), p. 326

Source: The Cost of Discipleship

Um dia, sentado à mesa, pensei: E se fôssemos todos cegos? Imediatamente me veio a resposta: Nós somos todos cegos.
On the idea for his next novel (Blindness), which came to him while sitting in a restaurant; New York Times interview with Alan Riding (1998), as quoted in Portuguese Literary & Cultural Studies, 6th Edition (Center for Portuguese Studies and Culture, 2001), p. 131.

Original French: Hors les mathématiques, nous sommes aveugles.
From Court traité d'ontologie transitoire. Paris: Éditions du Seuil, 1998. ISBN 2020348853.

A Heritage of Stars (1977)
Context: Space is an illusion, and time as well. There is no such factor as either time or space. We have been blinded by our own cleverness, blinded by false perceptions of those qualities that we term eternity and infinity. There is another factor that explains it all, and once this universal factor is recognized, everything grows simple. There is no longer any mystery, no longer any wonder, no longer any doubt; for the simplicity of it all lies before us...

On painter Rufino Tamayo.
I Used to Believe I Had Forever — Now I'm Not So Sure (1968)
Context: He paints for the blind, and we are the blind, and he lets us see for sure what we saw long ago but weren't sure we saw. He paints for the dead, to remind us that — great good God, think of it — we're alive, and on our way to weather, from the sea to the hot interior, to watermelon there, a bird at night chasing a child past flowering cactus, a building on fire, barking dogs, and guitar-players not playing at eight o'clock, every picture saying, "Did you live, man? Were you alive back there for a little while? Good for you, good for you, and wasn't it hot, though? Wasn't it great when it was hot, though?"

Source: Sex and Character (1903), p. 110.