The Road Less Traveled is a spiritual classic, combining scientific and religious views to help you grow by confronting and solving your problems through discipline, love and grace.

Creating a piece of work that stands the test of time is incredibly complex.

The Lindy effect is a good test: if a non-perishable thing like technology, movies, or books have been around for 20 years, we can expect them to last another 20.

If this theory holds up, then The Road Less Traveled will sell well until at least 2058.

Published in 1978 by then little-known American psychiatrist M. Scott Peck, this book can help anyone broaden their scope of problem-solving and decision-making.

Until now, it's sold a staggering ten million copies.

Using his experience from counseling many clients throughout his career, he lays out a recipe for a fulfilled life that's based on self-discipline, love, spirituality, and a mysterious force he calls grace.

Mastering these is essential to maintaining personal growth over time.