"That Man indeed can never be good at heart, who is full of himself and his own Endowments"

This quote by Mary Astell speaks with the idea that a person who is excessively concentrated on themselves and their own abilities can not be really excellent. Astell is suggesting that a person who is too focused on their own endowments, such as their intelligence, wealth, or physical appearance, will be unable to be good at heart. This is since they will be too focused on themselves and their own accomplishments to be able to think of others and their requirements. Astell is suggesting that a person who is really good at heart will have the ability to think of others and be simple about their own abilities. They will have the ability to acknowledge their own strengths and weaknesses, and have the ability to utilize them to assist others. Astell is recommending that an individual who is too concentrated on themselves and their own endowments will be not able to be really good at heart.