"Men have no more time to understand anything. They buy things already made at the shops. But there is no shop anywhere where one can buy friendship, and so men have no friends anymore". - Antoine de Saint-Exupéry The Little Prince.

From Wikipedia:

The Little Prince (French: Le Petit Prince, pronounced [lə p(ə)ti pʁɛ̃s]) is a novella written and illustrated by French writer and aviator Antoine de Saint-Exupéry. It was first published in English and French in the United States by Reynal & Hitchcock in April 1943 and was published posthumously in France following liberation; Saint-Exupéry's works had been banned by the Vichy Regime. The story follows a young prince who visits various planets, including Earth, and addresses themes of loneliness, friendship, love, and loss. Despite its style as a children's book, The Little Prince makes observations about life, adults, and human nature.[8]

The Little Prince became Saint-Exupéry's most successful work, selling an estimated 140 million copies worldwide, which makes it one of the best-selling in history.[9][10][11][Note 2][13] The book has been translated into over 505 different languages and dialects worldwide, being the second most translated work ever published, trailing only the Bible.[14][15][16] The Little Prince has been adapted to numerous art forms and media, including audio recordings, radio plays, live stage, film, cinema television, ballet, and opera.[15][17]

There is a reason this book has sold so well - it is poignant, empathetic, and disarmingly written in a very simple and accessible style. If you haven't read it, make sure you do.