Buddhist concepts such as knowledge and wisdom usually referred to concepts such as cognition, consciousness, and intelligence in modern literature. These concepts have an important place in Buddhism and are considered to be the key to freedom and achievement. In Buddhism, intelligence was seen as a superhuman ability that could be improved through cultivation. Through intelligence, people could better understand themselves and the world, and thus find true freedom and happiness. Knowledge referred to the perception and cognitive abilities of people. Through cultivation, people could purify their inner hearts and eliminate the wrong perception and cognitive ability, thus obtaining higher intelligence. Wisdom and emotion are different forms of consciousness. Knowledge and wisdom are closely related. Only through cultivation can people gradually improve their intelligence and obtain true wisdom. The concepts of knowledge and wisdom in Buddhism are not exactly the same as the concepts of cognition, consciousness and intelligence in modern literature, but there are many connections and similarities between them. By understanding these concepts, people can better understand Buddhist ideas and apply these concepts in their daily lives to obtain higher wisdom and happiness.