Who said "To write well, one must first think clearly."?

This quote is attributed to Frances Burney.

To write well, one must first think clearly. - Frances Burney

"To write well, one must first think clearly."

Frances Burney

Novelist English 1752–1840

"Courage is the first requisite in a woman."

"Do you come to the woods expecting to find a sylph or a nymph? You will be disappointed."

"The world has always laughed at its own follies."

"I am not at all in a humour for talking."