"she bore a mind that
envy could not but call fair...."
See in text (Act II - Scene I)
Sebastian recalls many of his sister’s better qualities and begins to cry as he does so. In this line, we learn that Viola has always had a keen wit, which helps explain how good she is at deception. To emphasize how creative and powerful her mind is, Sebastian personifies the emotion Envy to say that even the essence of jealousy would consider Viola’s wit and cunning impressive.