Where does the famous saying "a small step forward for civilization, a big step forward for civilization" come from?

"One small step forward, one big step towards civilization" is a popular tip in men's toilets, which aims to tell men to lean forward a little when urinating, and not to produce uncivilized phenomenon of discharging excrement to the ground. And generally speaking, the words "warm tips" should be added before such tips. Give the man who goes to the toilet a sense of superiority and feel that he is doing something to promote the development of civilization.

I think there is something wrong with this hint, "a small step forward, a big step forward for civilization." In this way, are we asking too little for the scale of civilization? Do you think that my vast country, 5,000 years of civilization and 3,000 years of Confucian control have created such a low civilized standard? Since ancient times, China has been known as "a country of civilization and ethics". Do we still need such low-level hints to remind ourselves to be "civilized"?

This little hint also reflects the retrogression of modern social civilization and the low quality of modern people from one side. With the development of economy, people's consciousness has been continuously improved and their thoughts have been continuously liberated. Modern people are more and more self-centered, paying more and more attention to their own feelings and paying less and less attention to others. This makes some unpleasant things more and more. Speaking of myself and my low quality, I thought of such a thing. A few days ago, I took a bus, and several high school girls were on the bus. One of them is full of dirty words, with a particularly loud voice and an informal look.

I don't know what kind of self-destructive image this is, giving people the impression of a bad youth without quality.