Anyone who tastes from The Book of Zohar will taste for himself that there is such wisdom in the world as the wisdom of the depth of the secrets of the flavors of Torah, and all the wisdoms besides it are regarded as naught and formless.
The Rav Tzvi Hirsh of Ziditshov,
Depart from Evil and Do Good
He would elaborate extensively with praise of the greatness of the sanctity of the Tikkuney Zohar [corrections of The Zohar]. He was accustomed to engage in it extensively ... and he said that all the wisdoms in the world are included in the book of corrections.
About Rabbi Nachman of Breslev,
Talks of Rabbi Nachman, 128