The Tao Te Ching whose authorship has been attributed to Lao Tzu, a record-keeper at the Zhou Dynasty court is a Chinese classic text. The text's true authorship and date of composition are still debated, although the oldest excavated text dates back to the late 4th century BC. The text is fundamental to the Philosophical Taoism and strongly influenced other schools, such as Legalism and Neo-Confucianism. This ancient book is also central in Chinese religion, not only for Religious Taoism but Chinese Buddhism, which when first introduced into China was largely interpreted through the use of Daoist words and concepts. Many Chinese artists, including poets, painters, calligraphers, and even gardeners have used the book as a source of inspiration. Its influence has also spread widely outside East Asia, and is amongst the most translated works in world literature.