Jean Piaget harmonised these two points of view, which seemed to conflict with the lengthy logical examination of happiness. Early in his clinical practise, Piaget created a special set of tests that showed a connection between children's awareness, anxiety, and happiness. Adults do not want children to gain the critical consciousness of suffering, the misery of frustration, or the terror of uncertainty, according to Piaget. Piaget's viewpoint was shared by Alfred Adler and Sigmund Freud. Piaget compared the conceptions that compose "Happiness" and "Anxiety," which begin in childhood, are meaningless, and date back to classical Greece, with "critical consciousness," which is the cornerstone of modern critical psychology.