In the Subway Station in Beijing, there are several buildings that express symmetrical beauty, and the angle chosen by the photographer reminds me of the phrase "There is no lack of symmetrical beauty in life, and there is a lack of eyes to find symmetrical beauty."
Regarding symmetrical beauty, there are many chinese and foreign commentators in ancient and modern times. The subway is accompanied by a passage on beauty in the pre-Qin dynasty of our country: "Fu Mei is also harmless, up and down, inside and outside, small and large, far and near, so it is called beauty." ”
The ancient Greek philosopher Pythagoras also said, "The linear form of beauty and all other forms of beauty must have a symmetrical form." ”
Symmetry is such a presentation, both inside and outside the left and right are uniform and appropriate, taking care of each other, harmonious and dignified. The beauty of symmetry is far more than architectural, it is everywhere in nature.
Human beings are a perfect symmetry in their own right, with almost every external organ appearing in pairs and distributed symmetrically. Even if there is only one piece, it is precisely divided by the central axis.
We are looking back at the most primitive animals, coelenterates are radiatively symmetrical, that is, they are symmetrical from multiple angles; flat animals that are slightly higher than coelenterates, like humans, have symmetrical bodies on both sides. For example, we are familiar with butterflies, dragonflies, peacocks, etc., all of which reflect the beauty of symmetry.
There are also many symmetrical species in the plant kingdom, and sunflowers are the most common and easiest to think of. Others, such as the cauliflower and purple cabbage we usually eat, are also typical representatives of symmetrical beauty.
If you often go to the museum, you will find that the faience pottery fired during the Yangshao culture period in China, whether it is geometric pattern, animal pattern or plant pattern, is symmetrically distributed.
Curious humans also invented the digital game of "World Perfect Symmetry Day". It refers to the date of the Gregorian calendar year in which the numbers are completely symmetrical, take this year, 2021, for example, the number presented on December 2 is the "20211202" is a number that is completely symmetrical about the left and right, and December 2, 2021 will be this year's World Day of Complete Symmetry. Such days are not every year, such as next year 2022, because the largest month is 12, and next year there will be no World Perfect Symmetry Day.
Some people have also specifically calculated all symmetry days since the Common Era, and the first "symmetry day" after the Common Era is January 1, 1 AD. In the year 1 AD, there are multiple "symmetrical days", such as February 1 of the first year, March 1, etc.
There were also many years when there was no "symmetry day". Up to now, the two "symmetry days" with the longest interval are the "13800831" on August 31, 1380 and the "20011002" on October 2, 2001, with an interval of 621 years.
There are still too many symmetrical and beautiful objects in the world, which contain the objective necessity of natural selection in nature, and the subjective efforts of human beings to pursue beautiful things, and you are welcome to share the symmetrical beauty around you.
(Some image source network)