While a guest on the Oprah show, Gloria Steinem said the difference between depression and sadness is "with depression, nothing matters; and in sadness and grief, everything matters."
Billie Jean King was on the same show, lauded for all she did for women's sports/Title IX and the impact of the infamous Battle of the Sexes tennis match (35 years ago!) She compared tennis as a metaphor for life saying, "Every time a ball comes to me in tennis … I have to make a decision and I have to live with the consequence."
When I was really young, watching both of them, Gloria and Billie Jean seemed like they were my mother's age. Now they seem like peers. Amazing how that happens.