There is right and wrong and we can and must choose

From Enemies of Society by Paul Johnson.

The Ten Pillars of our Civilization:

The first, and perhaps the most important, is to reassert our belief in moral absolutes. It is not true that all codes of human conduct are relative, and reflect cultural assumptions and economic arrangements which do not necessarily possess any authority. It is not true that there is no such thing as absolute right, and absolute wrong. It is not true that our behavior is wholly determined by environment. Nor is it true that to seek to impose moral norms is an arrogant and unwarrantable assumption of infallibility; on the contrary, in the long run it is a necessary condition of human happiness, and even of human survival. What is true is that every rational human being is in a moral sense free, capable of reacting to moral absolutes, and of opting for good or evil.