Who said "The pen is mightier because it lasts longer."?

This quote is attributed to Rosario Castellanos.

The pen is mightier because it lasts longer. - Rosario Castellanos

"The pen is mightier because it lasts longer."

Rosario Castellanos Literature

Novelist Poet Mexican 1925–1974

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

"Silence is the only language God did not give to man to deny it to women."

"Women are not born; they are made."

"I write because I have an inner need to do so."

"The pen is mightier than the sword."

"Literature opens the mind to new worlds"

"The interesting thing about books is that they're made of words."

"Literature captures the essence of what it means to be human."