This quote is classic Oscar Wilde, known for his wit and sharp observations on society. The quote suggests that plain women, or women who are not conventionally attractive, have an excuse for their plainness if they are puritans. Puritans, in this context, refers to people who follow strict moral or religious principles, often eschewing physical adornment or vanity. Thus, their plainness could be seen as a result of their principled life choices, rather than a lack of physical beauty. It’s a satirical commentary on the societal expectations placed on women to be physically attractive, and the judgement they face if they fail to meet those standards.

Applying this idea to today’s world, it’s clear that societal expectations on physical appearance still exist, though they have evolved. Now, both men and women face pressures to conform to certain beauty standards. This quote could be seen as a call to challenge these standards and the judgments that come with them.

In terms of personal development, it highlights the importance of not defining oneself or others based on physical appearance. Instead, it encourages us to value principles, character, and personal choices. It also suggests that societal standards or expectations should not dictate one’s life choices or self-worth. Beauty is subjective and it’s crucial to remember that everyone has their own unique beauty that goes beyond physical appearance.