Date: 1956

"'Can there be such stubbornness-- / A soul grown feverish, clutching its dead body-tree / Like a last storm-crossed leaf? "

— Plath, Sylvia (1932-1963)

Date: 1960

"Different persons growing up in the same language are like different bushes trimmed and trained to take the shape of identical elephants."

— Quine, W. V. O. (1908-2000)

Date: 1963

"The thought that I might kill myself formed in my mind coolly as a tree or a flower."

— Plath, Sylvia (1932-1963)

Date: 1963, 1965

"The trees of the mind are black."

— Plath, Sylvia (1932-1963)

Date: August, 1965

"His mind's all black thickets / and blood."

— Harrison, Jim (1937-2016)

Date: April 15, 1971

"You've got a geranium in your cranium."

— Lederer, Esther [Ann Landers] (1918-2002)

Date: 1972

"Summer breeze, makes me feel fine, / Blowing through the jasmine in my mind."

— Seals, Jim (b. 1941) and Dash Crofts (b. 1940)