Why Are Some Words Bracketed In Quotes & Sayings

The phobic has no other object than the abject. But that word, "fear"- a fluid haze an elusive clamminess- no sooner has it cropped up than it shades off like a mirage and permeates all words of the language with nonexistence, with a hallucinatory, ghostly glimmer. Thus, fear having been bracketed, discourse will seem tenable only if it ceaselessly confront that otherness, a burden both repellent and repelled, a deep well of memory that is unapproachable and intimate: the abject. — Julia Kristeva