Among all the Scriptures and Sutras, which one is the best

and worth studying?

The purpose of  studying Scriptures and Sutras is to seek Tien-Tao. 

For those who received Tien-Tao, their practices will not be hampered

even if they do not study Scriptures and Sutras.  As long as they hold

fast to their True Selves, it is equivalent to studying a true Sutra without

words.  Besides, there are 5,480 volumes in Buddhist Sutras alone.  If

one studies one volume a day, it will take fifteen years to complete

the study.  Precious time flies like an arrow and we cannot afford to

devote our energy in this endeavour.

On the other hand, we should not refuse to study any Scriptures or

Sutras either.  However, one can benefit from studying only if one

practices the teachings of scriptures and sutras.  Scriptures such as

The Great Learning, The Doctrine of the Mean, Confucian Analects,

Mencian Analects, the Vajra Sutra, Tan Ching (The Platform Scripture

or The Treasure Sutra), Tao-teh Ching, Qing-Jing Ching, The Holy

Bible, The Koran, etc, can all uncover our wisdom.  These are the

ones we should study.