Photo: Wikimedia Commons · CC BY-SA 4.0
Thesis
The key words in “茶性俭不宜广广则其味黯澹” are not ornament. They mark where Tang tea names, vessels and provenance meet.
Text
“Tea is frugal by nature; it should not be used too lavishly, for overuse dims its flavor.”
Context
俭：少、收敛。不宜广：不宜投茶过多。黯澹：暗淡无味。
Evidence
- Collation: 各本一致。"茶性俭"为《茶经》名句，与"精行俭德"精神呼应。
- Existing readings: 吴觉农评"茶性俭"为全书点睛：茶性内敛，贵在恰到好处，多则失味、滥则失格——这既是冲泡之道，也是"俭以养德"的人生哲学。
Analysis
The annotation matters less as philology than as a distinction between name and thing. 各本一致。"茶性俭"为《茶经》名句，与"精行俭德"精神呼应。 Once names settle, picking, grading and trade can share a language.
Conclusion
The section does not give a universal rule. It demonstrates a method: read the text, the annotation and the Tang context together before making a modern claim.
Source: The Classic of Tea, Chapter V · The Brewing, section 8; the original is in the public domain.
Ask what period this person lived in.