Research has found that having a backup plan might actually sabotage your efforts toward Plan A. Before you set up your safety net, read these lessons from women scientists.

Dame Stephanie Shirley founded a women-only computing company in 1962, determined to do her work on her terms, and to hell with the glass ceiling. In this video, introduced by US CTO Megan Smith, admire the feisty spirit who upended tech world sexism by refusing to accept it.