我们有能力善良。

Running a business requires social responsibility. We must not only pursue economic benefits but also pay attention to food safety and environmental protection.

A proof tells us where to concentrate our doubts.

人穷了住在闹市也没人愿意理睬，人富了住得再偏远也会有人去登门。

The degree of slowness is directly proportional to the intensity of memory; the degree of speed is directly proportional to the intensity of forgetting.