内容简介：
This is the final work of the distinguished philosopher Paul Ziff, whose earlier books include Understanding Understanding, Philosophical Turnings, and Semantic Analysis. It is carefully crafted and written in numbered paragraphs rather than chapters, in style of the later Wittgenstein. The work concerns morality, rationality, symbolism and imagery. In the words of the author: "The primary thesis of this essay is that, although there are many different and conflicting moralities, both here in America and throughout the world, some of them can be criticized and rejected on rational grounds. There are other moralities that one can personally reject, but they cannot be criticized on rational grounds. The same is true of the various values and priorities that different people have. Some are open to criticism on rational grounds; others are not open to such criticism." His conclusion is: "Symbolism and imagery constitute the real and only basis of the moralities that I have endeavored to characterize here, my own morality and that of others. But the most fundamental image of all of my morality is that which is created by an appreciation of life, all life."