Mary Wollstonecraft Shelley said this quote

Life, although it may only be an accumulation of anguish, is dear to me, and I will defend it.

~ Mary Wollstonecraft Shelley

The fallen angel becomes a malignant devil. Yet even that enemy of God and man had friends and associates in his desolation, I am alone.

~ Mary Wollstonecraft Shelley

There was a considerable difference between the ages of my parents, but this circumstance seemed to unite them only closer in bonds of devoted affection.

~ Mary Wollstonecraft Shelley

Seek happiness in tranquility and avoid ambition even if it be only the apparently innocent one of distinguishing yourself in science and discoveries.

~ Mary Wollstonecraft Shelley