Yëduàn (義端) was a 12th-century Chinese monk of the Chan (禪) school of Buddhism.
Yiduan is notable for the saying "Language is a sham, silence a lie, but beyond language and silence a road goes by" (èªÂæÂ¯è¬Â, å¯ÂæÂ¯èªÂ, èªÂå¯ÂÃ¥ÂÂä¸ÂæÂÂè·¯å¨).