Laozi was the founder of the Taoist School, and wrote “Tao Te Ching” (道德经 Dàodé jīng) (The Classic of the Way and Virtue). He deemed that all things have their opposites; for example, fortune and misfortune, existence and non-existence, life and death, nobility and baseness , high and low, strong and weak are all pairs of opposite aspects of a unity and can be transformed into each other.