“Labor’s Own Reward: Commitment, Connectedness, Coherence,” an exhibit by Bridgwater professor Eric Kniss, opened in the Margaret Martin Gehman Art Gallery last Saturday. Gehman, a relative of the artist, was cheerfully in attendance. Kniss spoke about growing up in a home that taught the value of hard work. Thus, his ceramic dust sculptures reassembled drawings, and the giant rope ball demonstrate the artistic results of banal, repetitive processes. Kniss took representational charcoal drawings, tore them apart, then glued them back together, using pencil notches to indicate seams. The rope ball, composed of 10,000 feet of nylon, was exceptionally colorful in the otherwise monochromatic show.