Phap Hien was a Vietnamese Zen master. He lived in the late 5th century and early the 6th century. When he was a young monk at the Phap Van Temple he met Vinitaruci (?-594) who was one of the successors of Seng-tsan, the Third Patriarch...
When beauty is abstracted
Then ugliness has been implied;
When good is abstracted
Then evil has been implied.
So alive and dead are abstracted from nature,
Difficult and easy abstracted from progress,
Long and short abstracted from contrast,
High and low abstracted from depth,
Song and speech abstracted from melody,
After and before abstracted from sequence.