Master Chang San-Feng's Treatise on T'ai Chi Ch'uan, circa 1300 CE, Part 3

"Avoid deficiency and excess; avoid projections and hollows; avoid severance and splice."
- Stuart Olson

"Do not show any deficiency, neither concavity nor convexity in movement. Do not show disconnected movement."
- Jou, Tsung-Hwa

"No part should be defective, no part should be deficient or excessive, no part should be disconnected."
- Yang, Jwing-Ming

"Let there be no hollows or projections; let there be no stops and starts."
- Barbara Davis

"When performing T'ai Chi, it should be perfect; allow no defect. The form should be smooth with no unevenness, and continuous, allowing no interruptions."
- Liao, Waysun

"Let the postures be without breaks or holes, hollows or projections, or discontinuities and continuities of form."
- Benjamin Lo

" Move in a continuous, even and smooth manner.
Do not overextend the limbs or sully the forms.
Flow like the Great River
Filling all the holes and hallows,
Unbroken, gathered, full, unstoppable;
Seeking the True Level, finding the Golden Mean,
Neither excessive nor deficient in Yin or Yang;
Holding postures as perfect as the Blue Lotus,
Moving steadily between forms like the White Tiger,
Uniting body and will in the Jade Furnace,
Transcending inner and outer, starting and stopping."
- Michael P. Garofalo

The Principles of T'ai Chi Ch'uan is attributed to the
Taoist Master Chang San-Feng, circa 1300 CE.