+ A picture=1000 words?
学photojournalism最常见到的一句话就是One picture is worth a thousand words。今日写论文时想用上，溯其源头，答案如下
A picture paints a thousand words
A picture tells a story as well as a large amount of descriptive text.
The original quotation is, "One look is worth a thousand words"; Frederick R. Barnard in Printer's Ink, 8 Dec 1921 - retelling a Chinese proverb.
One picture is worth a thousand words
A graphic illustration conveys a stronger message than words, as in The book jacket is a big selling point--one picture is worth a thousand words. This saying was invented by an advertising executive, Fred R. Barnard. To promote his agency's ads he took out an ad in Printer's Ink in 1921 with the headline "One Look Is Worth a Thousand Words" and attributed it to an ancient Japanese philosopher. Six years later he changed it to "Chinese Proverb: One Picture Is Worth Ten Thousand Words," illustrated with some Chinese characters. The attribution in both was invented; Barnard simply believed an Asian origin would give it more credibility.
原来如此啊。我倒是相信这个说法了，虽然都说是一个广告人Fred R. Barnard在1921年首创，但他来自中国谚语的说法在这里被否认了，据说都是他瞎吹的，其目的是增加其可信度或者权威性吧。