Her husband's cooking
Ruth tells Rosen that her husband used to cook "like a dream." This symbolizes his progressive nature, and the fact he was happy to reject conventional gender roles within the home.
Thurgood Marshall
Thurgood Marshall is used as a symbol of talent in the legal profession. He is someone Ruth looked up to and inspired her to take a new approach to her career.
Sex-based discrimination
Sex-based discrimination in the law is something that is mentioned frequently in the book. This is not surprising, considering that Ruth Bader Ginsburg is known for the changes she made to laws, in pursuit of gender equality. Rosen frequently mentions court cases Ginsburg was involved in, giving examples of where the law was discriminatory.
Opera
In this book, opera represents the friendship between Rosen and Ruth. It is something they bonded over initially and continued to enjoy into their friendship.
The flowers
Rosen buys some flowers for Ruth, which he discusses in the introduction. For Rosen, the flowers symbolized his gratefulness as Ruth had previously bought him opera tickets. For Ruth, the flowers symbolized spring and the new era of her life.