體用不二 反己體證 當下即是 終極關懷 實踐理性 當體超越 軸心時代 以德配天 攝天歸人 超越在己 Tiyung buern Non-duality of substance and function Fanji tijeng Attestation in one's own experiences Ultimate concern Practical reason The age of axis Yide peitian Following the principle of the universe Transcendence in the self