Tensho and Reisho: What the Line Does Before and After It Stops

The Line Goes Nowhere, or It Sweeps

If I had to name the difference between tensho (seal script) and reisho (clerical script) in a single sentence: the line in seal script goes nowhere — it stays the same width from start to finish and stops without drama. The line in clerical script travels quietly until the final horizontal, then sweeps up to the right in a single release. That contrast reached my hands before I could put it into words. The two are not degrees of the same thing. They are produced by completely different body movements.

Working in seal script means keeping the brush tip vertical to the paper. Tilt the brush and the width changes, so I hold my elbow up and adjust the angle in my fingers as I pull each stroke. When I first tried the vertical stroke in seal script, I ruined line after line because the width shifted at the entry and again at the end. The consistency of a line cut in stone three thousand years ago is harder to match in ink than it looks. I set a copy of the Yìshān stele — the peak small-seal model attributed to Li Si — on the desk and drew dozens of verticals until the width finally held steady, and only then discovered that keeping that steadiness through a curve was an entirely different problem.

The Sweep Comes From Stopping First

The defining mark of clerical script is the hataku stroke — the horizontal that builds at the entry and then sweeps up to the right at the end, the movement described as "silkworm's head, swallow's tail." What I came to understand from practising it on half-sheet paper is that the sweep is not produced by momentum alone. It begins with a stop just before the release.

Send the horizontal, press the brush briefly at the end, then draw off in one breath. Without that pause the stroke simply fades and splits. I drilled this on the Cáo Quán stele, which I still choose for learning clerical script over the Zhāng Qiān because its sweeps are more flowing and easier to read. Put a copy of the Yìshān (seal) next to the Cáo Quán (clerical) and what each demands of the body becomes plain. The Yìshān asks for a held breath and unbroken steadiness throughout; the Cáo Quán asks for a precise release at a single moment. Both are beautiful, but the hand's experience in each could hardly be more different.

The Two Scripts That the Three Later Ones Rest On

The five standard scripts come in order: seal, clerical, block (kaisho), semi-cursive (gyosho), cursive (sosho). Most people begin with block script, but block is the product of over two thousand years of what came before it. The press-and-stop at the entry and exit of each stroke in block script is a practice that clerical script worked out over centuries. The sensitivity to an even, consistent line comes from seal script.

So I do not treat seal and clerical as ancient curios harder than the three later scripts. I see them as the ground under block script's feet. Practising seal script first — drilling the even line into the hand — and then moving to clerical and releasing the sweep, there is a moment when stopping and releasing feel like the same motion seen from opposite sides. As I wrote in the piece on the three later scripts, the difference between scripts shows in how many times the brush leaves the paper rather than in how simplified the shapes are. Knowing the hand-feel of seal and clerical makes those later differences easier to see. What a single stroke can carry at each lift and press is the same question that the eight methods of "eternity" answer in another form.