We often give our enemies the means for our own destruction.
海鸥和鹞鹰
The Seagull and the Kite
海鸥从海里捉到一条大鱼，却被这条个头太大的鱼撑破了喉咙，气息奄奄地倒在了岸边。鹞鹰看到后对海鸥说：“你真是自讨苦吃啊！你生来是一只鸟，干吗非要来海上寻找食物不可呢？”
每个人都应该满足于自己的领域。
A Seagull having bolted down too large a fish，burst its deep gullet-bag and lay down on the shore to die. A Kite saw him and exclaimed，“You richly deserve your fate；for a bird of the air has no business to seek its food from the sea.”