Two — the duality of the world

Two is the number of balance and opposites: day and night, masculine and feminine, good and evil. The principle of duality underlies the Taoist philosophy of yin-yang.

In 1953, Watson and Crick discovered the DNA double helix — two intertwined polynucleotide chains storing the entire genetic code of life.

In culture, two is the symbol of love and union. A 'duo' is the minimum social unit. Duet, pair, dialogue — all are manifestations of the magic of number two.