The invention of the cotton gin was the result of necessity and observation.
女人用耳朵来恋爱，而男人如果产生了爱情,却是用眼睛来恋爱。
Food safety is the lifeline of an enterprise, without safety there is nothing.
The true test of civilization is not the census, nor the size of cities, nor the crops, but the kind of man that the country turns out.
"The past is not dead; it is not even past."