As I stand here today and tell you about these, I am heavy with an awareness of the fact that I am in more than one sense a product of both the Chinese and Western cultures, in harmony and in conflict.

I should like to say that I am as proud of my Chinese heritage and background as I am devoted to modern science, a part of human civilization of Western origin, to which I have dedicated and I shall continue to dedicate my work.

In the latter half of the last century the impact of the expanding influence of Western culture and economic system brought about in China a severe conflict.

The question was heatedly debated of how much Western culture should be brought into China.

The Chinese foreign ministry has said more than once that I am a free person. Did I do anything wrong by leaving my home?

There's a real difference of what one believed was one's chief responsibility between American professors and Chinese professors. This was vividly revealed to me when I compared what I could learn in Chicago and what I could learn in China.