It is related of Rabbi Shimon, the son of Gamaliel, that at the
rejoicing during the festival of the drawing of water on the Feast of
Tabernacles, he threw eight flaming torches, one after the other in
quick succession, into the air, and caught them again as they descended
without suffering one to touch another. He also (in fulfillment of Ps.
cii. 14) stooped and kissed the stone floor, supporting himself upon his
two thumbs only,--a feat which no one else could perform. And this is
what is termed stooping properly.
THE TALMUD, _Succah_, fol. 53, col. 1.