The Cyrkle was an American pop-rock band best known for their 1966 hit Red Rubber Ball. Formed in the mid-1960s, they brought catchy melodies and bright harmonies to their songs.

He said that life is about juggling 5 balls: work, family, health, friends and spirit. Work is a rubber ball–if you drop it, it will bounce back. But the other balls are glass.

In a 1991 commencement speech at Georgia Institute of Technology, Brian Dyson, former Coca-Cola CEO, described striving for work-life balance in terms of juggling glass and rubber balls ...