Links from four categories have been selected

Firstly, links that pertain to chan and zen, and in particular to Shifu Sheng-yen.

Secondly, links that contain suttas and sutras, the original teachings of Buddha Shakyamuni. After Shakyamunis death his teachings were passed down orally for about half a milennium, then they were recorded in writing, in Sri Lanka in the first century BC, as the Pali Canon. This Canon is considered to possess the closest likeness to the original teachings. The sutras, the core of the Mahayana teachings, cannot be traced to Buddha directly and stem from later times. They are with one exception in Sanskrit. The exception is the Platform Sutra which is in Chinese.

Thirdly, links that pertain to consciousness, and in particular to self. Philosophy and psychology have delt with the self in East and West for thousands of years. The physiological and neurological aspects of the self, however, are new and the domain of the West.

Fourthly, links that pertain to mathematics and science,  and in particualr to cosmology.