5 Feminist Ideas That Changed the World

Written by Ece Tekbulut, Political Philosopher and Founder

Dr. Ece Tekbulut is a political philosopher and the founder of Thinking Through. She earned her Ph.D. from Columbia University. Through Thinking Through, she creates spaces for people to become better thinkers. Her work brings rigorous philosophical inquiry into everyday life, exploring themes relevant to modern society.

Every transformation in society begins with an act of thinking, the development of concepts that help us name problems that were always there but were difficult to articulate because we lacked the language for them.

The feminist thinkers below gave language to experiences that were at once deeply concrete in everyday life yet difficult to grasp because they appeared natural, private, or intangible. By naming them, they made critique and change possible.

This list focuses largely on Western feminist theory, not because transformative work has not been done elsewhere, but because this particular intellectual tradition produced concepts that have become especially influential in global debates.

1. The personal is political

“The personal is political” became widely known through a 1969 essay by Carol Hanisch, an activist within the U.S. women’s liberation movement.

At its core, the phrase argues that what we experience as private problems are often shaped by public structures of power. Before this concept, what happened at home, who took on the caretaking role, who had economic independence in a partnership, who was the victim of domestic violence, who made the major household decisions, was treated as a private matter, outside the reach of critique, accountability, and policy intervention.

Feminists insisted that power operates not only in state institutions but also within the confinements of the house. When women are disproportionately burdened with unpaid care work, lack financial autonomy, face limited reproductive control, or encounter systemic barriers in the workplace, these are not idiosyncratic cases or individual failures. They are outcomes of social norms, legal systems, and economic structures that have been deliberately shaped to entrench men’s dominance over women.

This shift in perspective had concrete consequences. For instance, marital rape and domestic violence moved from being dismissed as a “family issue” to matters of public concern, and women’s unpaid labor entered economic analysis and public debate. More broadly, the slogan changed how women understood their own experiences. It created language for identifying patterns, reduced isolation and shame, and opened the possibility of collective action. By reframing the private sphere as politically structured, feminism expanded what counts as political itself.

2. Intersectionality and feminist theory

Kimberlé Crenshaw, a civil rights lawyer and critical race theorist, coined the term intersectionality in 1989 to capture how overlapping social identities, such as race, gender, class, and sexuality, intersect to create unique systems of discrimination and privilege that cannot be understood through a single axis of identity alone.

Crenshaw developed this concept while working on employment discrimination cases in the 1980s. Race discrimination was typically analyzed through the experiences of Black men, while sex discrimination centered on white women. This meant that companies could appear non-discriminatory by employing or promoting Black men and white women, while systematically excluding Black women. Black women, who faced discrimination on the basis of both race and gender together, became legally invisible.

The law could only see one axis at a time, so their unique experience fell through the cracks. This insight also revealed important gaps within the feminist movement itself. Much of mainstream feminism had centered the experiences of white, middle-class women and treated gender as a single, universal category. By highlighting the specific forms of discrimination faced by Black women, Kimberlé Crenshaw showed that gender inequality does not operate in isolation from race, class, or other social hierarchies.

Intersectionality, therefore, challenged feminism to broaden its agenda and to decenter white women’s experiences as the standard for understanding women’s oppression.

3. Performativity of gender

Following Simone de Beauvoir’s famous claim that “one is not born, but rather becomes, a woman,” Judith Butler developed the concept of performativity to explain how gender comes into being through repeated actions. Butler argues that gender is not an inner essence or a fixed identity we possess. Instead, it is produced through repeated behaviors, gestures, and ways of presenting ourselves that follow socially recognized norms. For example, girls may be encouraged to sit with their legs crossed, speak softly, be modest or nurturing, wear certain kinds of clothes, or avoid appearing too assertive. Through countless small practices like these, individuals learn to enact what society recognizes as a woman. And because these acts are repeated over time, gender comes to appear natural and stable, even though it is continuously being performed.

This matters because if gender is performative rather than fixed, Butler suggested that it can also be performed differently. Gender can be enacted in ways that disrupt or subvert dominant norms. This insight became central to queer theory, which challenges rigid categories such as male/female or masculine/feminine. The idea of performativity opened space for thinking about gender fluidity, experimentation, and resistance to traditional norms.

4. Emotional labor

Arlie Hochschild introduced the concept of emotional labor in her 1983 book The Managed Heart, based on research with flight attendants and bill collectors. She observed that in some jobs the worker’s emotions themselves become part of what is being sold.

Flight attendants, for example, were trained not only to serve passengers but to project warmth, patience, and care. This requires workers to manage their feelings and expressions as part of their job. When their real emotions do not match the demands of the situation, they must actively seek to align them through mental, bodily, or expressive techniques. This is mentally and physically taxing, and over time, constantly performing emotions that may not match one’s true feelings can produce a sense of alienation, where workers become distanced from their own inner lives and authentic selves.

The concept later expanded beyond paid employment to describe the emotional management that takes place in everyday relationships. In families and friendships, someone often takes responsibility for remembering birthdays, noticing when someone is upset, and smoothing over conflicts. This labor tends to fall disproportionately on women and often goes unrecognized.

The concept of emotional labor named and therefore made visible a kind of work that falls on women: a specific exhaustion that doesn’t map onto hours worked or tasks completed but comes from the constant responsibility of managing emotions, both one’s own and those of others.

5. The male gaze

Film theorist Laura Mulvey, in her 1975 essay, “Visual Pleasure and Narrative Cinema,” argued that Hollywood cinema is structured around a heterosexual male subject who looks and a female object who is looked at. The camera, or the “gaze,” is never neutral. It

aligns us with a male, authoritative perspective and positions women as sexual objects and erotic spectacles. Men drive the narrative. Women exist to instill desire or fear in the spectator as well as in the hero.

The concept of the “male gaze” extends beyond film. Art and advertising have long been organized around a similar structure that positions men as subjects and women as objects of visual and sexual evaluation. What’s even more problematic is women internalizing the male gaze and building a self-image based on their status as objects of visual consumption. It trains women to monitor themselves through external eyes.

The concept shifted conversations about visual culture. It showed that patriarchy operates not only through laws and institutions, but also through images, storytelling, and the act of looking itself.

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Ece Tekbulut, Political Philosopher and Founder

Dr. Ece Tekbulut is a political philosopher, cultural entrepreneur, and public intellectual. She earned her Ph.D. in Political Science from Columbia University, where her research examined democracy, risk, and emergency powers. She is the founder of Thinking Through, a New York-based philosophy salon that brings rigorous ideas into conversation with everyday life.

Through curated discussions on love, friendship, adulthood, money, cities, power, and AI, she invites participants to actively grapple with the philosophical questions shaping modern society. Her work creates spaces where people think together, challenge assumptions, and practice serious reflection beyond academia.