From the modern sprout, develop to ultimate maturity, knowledge numerators of different times have different experiences that represented the special development features and background of each age.

• 从现代的萌芽、到现代的开端再到现代的发展最后至现代的成熟，不同时代的知识分子有各自不同的成长经历，代表着各个时代的发展特色和背景。