"من تا اخیرا متوجه نشده بودم که زنان قرار است جنس پست‌تر باشند."

Simplified Meaning:

When you think someone is just as important and capable as anyone else, but then you discover people around you believe that person's group is somehow less important or capable, it's surprising and eye-opening. For example, a child might think both their grandpa and grandma can do anything. One day, the child hears someone suggest women, like grandma, aren't as smart or strong as men. This puzzles the child because they always saw grandma as equally amazing. This quote means that a person didn’t know society often puts women down or treats them unfairly until they noticed it recently. They grew up not seeing women as "less than" men, but then saw others acting like women are not as good. This realization can help someone understand and fight against unfair treatment. By seeing everyone as equal, they can treat people better and support a fairer world. For instance, if you believe both boys and girls are good at sports, you can help make sure both get equal chances to play and succeed.