Mencius (also known as Meng Zi, Meng Ke, circa 372-289 BC) was the most prominent Confucian after Confucius, whose teachings were fundamental to Chinese culture for millennia. The book Mencius documented Mencius's conversations with his disciples and other relevant characters and highlighted his philosophy. This book provides a new translation of Mencius in plain and colloquial English, thorough annotations, in-depth commentaries to explain the Confucian philosophy, and modern perspectives of Mencius's ideas. The reader will find this book highly comprehensible, inspirational, and enjoyable to read. This book also includes the ancient text in traditional Chinese.