“For truly being and not-being grow out of one another; difficult and easy complete one another, long and short test one another; high and low determine one another; pitch and mode give harmony to one another; front and back give sequence to one another. i.e. contradiction was universal.”From which book is the above sentence cited? ( ) A.The Book of Changes B.Dao De Jing C.The Doctrine of the Mean D.Vajra Sutra
正确答案：B
