+ 还有 Rudolph Flesch 的《The Art Of Clear Thinking》（1951年）。他在书里给出了一些可视化图解，展示人们如何把一年中的月份具象化为一个椭圆，等等。
+ Rudolph Flesh, The Art Of Clear Thinking (1951). He has visualizations in there how people concepualize the months in a year as an ellipsis, and so on.
Hasard Lee 的《The Art of Clear Thinking》。
The art of clear thinking, by Hasard Lee.
+ 还有 Rudolph Flesch 的《The Art Of Clear Thinking》（1951年）。他在书里给出了一些可视化图解，展示人们如何把一年中的月份具象化为一个椭圆，等等。
+ Rudolph Flesh, The Art Of Clear Thinking (1951). He has visualizations in there how people concepualize the months in a year as an ellipsis, and so on.