Men are fighting one another because they are convinced that the extermination and liquidation of adversaries is the only means of promoting their own well-being.
Ludwig von MisesMan is born an asocial and antisocial being. The newborn child is a savage. Egoism is his nature. Only the experience of life and the teachings of his parents, his brothers, sisters, playmates, and later of other people FORCE HIM to acknowledge the advantages of social cooperation and accordingly to change his behavior.
Ludwig von MisesIt is not enough for [the investor] to know all the factors that can possibly contribute to the determination of a future event. In order to anticipate correctly they must also anticipate correctly the quantity as it were of each factor's contribution and the instant at which its contribution will become effective.
Ludwig von Mises