From 《
孟子·
告子上》 (Mencius, Gaozi I, c. 4th c. BCE), the canonical 'fish and bear's paw' passage:
鱼,
我所欲也;
熊掌,
亦我所欲也。
二者不可得兼,
舍鱼而取熊掌者也 (Fish is what I desire; bear's paw is also what I desire. If the two cannot both be had, I would give up the fish and take the bear's paw). Mencius then uses it as a parable for choosing yi (righteousness) over life itself. The source of both this phrase and
舍生取义.