food for thought

food for thought其意思是”使我們要認真思考的事”

yahoo字典，就這樣解釋

1. 引人深思的事
His father's advice gave the boy food for thought.
父親的忠告引起了孩子的深思。


而cambridge Dictionary online，也這樣解釋：
give sb food for thought：
to make someone think seriously about something

所以在英語國家，food for thought意思確如你所說

希望幫到你！



2009-03-21 23:07:06 補充：
牛津第六版，也這樣解釋：an idea that makes you think seriously and carefully.

2009-03-27 14:18:43 補充：
其實都可算是食物，只不過是思想上的食物”有得思，冇很食”