Thiruvalluvar Thirukkural

Thirukkural, is a classic of couplets or Kurals (1330 rhyming couplets) or aphorisms. It was authored by Thiruvalluvar, a poet who is said to have lived anytime between 2nd century BC and 5th century AD. Most believe he wrote Thirukkural in 30 BC which is part of TamilSangam Period. It is one of the Tamil-books of Law.
The Thirukkural is one of the most important works in the old language. This is reflected in some of the other names by which the text is known: Marai (Vedas); poyyamozhi (words that never fail); and Daiva nool (divine text). The book is considered to precede Manimekalai and Silapathikaram since they both acknowledge the Kural text.
Thirukkural (or the Kural) is a collection of 1330 couplets organised into 133 chapters. Each chapter has a specific subject ranging from "ploughing a piece of land" to "ruling a country". It preaches simplicity and truth throughout its verses.