лицо, за которое кто-л. поручился
common ~ - ист. глашатай суда
особа, викликана в якості свідка; авторитетне джерело (про людину)
"I imagine that yes is the only living thing." e. e. cummings
"How little do they see what really is, who frame their hasty judgment upon that which seems." Daniel Webster
"Perfection itself is imperfection." Vladimir Horowitz
"He has achieved success who has worked well, laughed often, and loved much." Elbert Hubbard