Susan Wojcicki was the most level-headed of her sisters while growing up, mother recalled in earlier talk about how to raise successful kids

Susan Wojcicki on stage (Credit: aylor Hill—FilmMagic for YouTube)

Months before Susan Wojcicki passed away on Friday, her mother Esther Wojcicki recalled what the former YouTube CEO was like as a kid and how she raised her daughters.

"Susan was the most level-headed," Wojcicki told CNN in May. "She was super easy to take care of, baby and child. It was like she was born being rational. And I thought she was so great that I was like, 'Oh, I'll have another one.'"