Esther Rolle said this quote

“ 'Hollywood maids' are so idiotic. They grin at everything. I told Norman Lear I didn't want to play a maid because of that 'hee-hee/grin-grin' attitude, and he said, 'Who said I wanted that?' He told me he wanted two strong women that are the black and white of the same coin. I said, 'Oh, well - in that case, I'll be right there!' ”