a pigeon, oppressed by excessive thirst, saw a goblet of water painted on a signboard. not supposing it to be only a picture, she flew towards it with a loud whir and unwittingly dashed against the signboard, jarring herself terribly. having broken her wings by the blow, she fell to the ground, and was caught by one of the bystanders.

zeal should not outrun discretion.

有只鸽子口渴得很厉害，看到一幅画着一盆水的画，误以为是真的，就大叫一声，振翅向这幅画飞去，不料重重地撞到了贴画的木板上，头破血流，翅膀也折断了，跌倒在地，变成了别人的囊中之物。

做事冲动，只能自取灭亡。