Well, they should act kindly towards each other, shake hands, say "How do you do?", be cordial.
Allison is eight months old. according to Piaget, when she sees her ball roll behind the television set, she will not look for it. allison is in Piaget's sensory; physical stage of cognitive development.
The preoperative stage occurs between the ages of 2 and 6 years and is the second stage of Piaget's stages of cognitive development. During most of the preoperative period, the child's thinking is egocentric or egocentric.
The formal surgical phase begins around the age of 12 and continues through adulthood. When adolescents enter this stage, they acquire the ability to think in an abstract way and manipulate ideas in their minds without relying on concrete manipulations (Inhelder & Piaget, 1958).
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I would say mostly economic factors: common currency, common market, wide-scale trade among the countries. If one country is hit, the others will also suffer: this brings in the feeling of solidarity.
other than that, European culture is actually quite unified, with many shared valued, such as universal health care and religious freedom, yet connection to Christianity.
