“But only he who, himself enlightened, is not afraid of shadows.”

Source: A Scanner Darkly

Usher II (1950)
The Martian Chronicles (1950)
Source: Fahrenheit 451
Context: They began by controlling books of cartoons and then detective books and, of course, films, one way or another, one group or another, political bias, religious prejudice, union pressures; there was always a minority afraid of something, and a great majority afraid of the dark, afraid of the future, afraid of the past, afraid of the present, afraid of themselves and shadows of themselves.

Source: Quotes from secondary sources, Dictionary of Burning Words of Brilliant Writers, 1895, P. 171.

The Tragic Sense of Life (1913), VI : In the Depths of the Abyss
Context: In the most secret chamber of the spirit of him who believes himself convinced that death puts an end to his personal consciousness, his memory, for ever, and all unknown to him perhaps, there lurks a shadow, a vague shadow, a shadow of uncertainty, and while he says within himself, "Well, let us live this life that passes away, for there is no other!" the silence of this secret chamber speaks to him and murmurs, "Who knows!... " These voices are like the humming of a mosquito when the south-west wind roars through the trees in the wood; we cannot distinguish this faint humming, yet nevertheless, merged in the clamor of the storm, it reaches the ear.

First Ennead, Book VI, as translated by Thomas Taylor, The Eleusinian and Bacchic Mysteries: A Dissertation https://books.google.com/books?id=vEt0LaOue8IC (1891) pp. 43-44.
The First Ennead (c. 250)

Source: The Scarlet Letter

Source: What America Means to Me (1943), p. 8
Context: Race prejudice is not only a shadow over the colored — it is a shadow over all of us, and the shadow is darkest over those who feel it least and allow its evil effects to go on. It is not healthy when a nation lives inside a nation, as colored Americans are living inside America. A nation cannot live confident of its tomorrow if its refugees are among its own citizens. For it is never the one who suffers injustice who is the injured one, but the one who is unjust. Slavery bred a race of idle and shiftless white men, and race prejudice continues the evil work. White people who insist on their superority because of the color of the skin they were born with- can there be so empty and false a superiority as this? Who is injured the most by that foolish assumption, the colored or the white? In his soul it s the white man. It is the wise white people who ought now to be angry because of race prejudice, for as surely as night follows day our country will fail in its democracy because of race prejudice unless we root it out. We cannot grow in strength and leadership for democracy so long as we carry deep in our being this fatal fault.

Thoughts and Aphorisms (1913), Jnana

"A Way to Love God", New and Selected Poems 1923–1985 (1985)