Sokuzan’s dharma talk is inspired by this verse from the poem “Hsin -hsin Ming” by Seng-ts’an, the Third Zen Patriarch:
“If you wish to know the truth then hold no opinions for or against anything. To set up what you like against what you dislike is a disease of the mind.”
https://www.youtube.com/watch?v=HLtOcyVzFQc&t=1s