Who said "I am still my own theme, my own concern."?

This quote is attributed to Frida Kahlo.

I am still my own theme, my own concern. - Frida Kahlo

"I am still my own theme, my own concern."

Frida Kahlo Solitude

Surrealist Painter Mexican 1907–1954

"Feet, what do I need you for when I have wings to fly?"

"I paint myself because I am so often alone and because I am the subject I know best."

"I am my own muse, I am the subject I know best. The subject I want to know better."

"Courage is the base everything moral is built upon."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."