Know this: though love is weak and hate is strong, Yet hate is short, and love is very long.

The future is bound to surprise us, but we don't have to be dumbfounded.

The discounting presumably is to be done for each period of time at that rate of interest which represents the alternative cost of employing capital in the occupation in question; that is, at the rate which the entrepreneur could obtain in other investments

DNA has been aptly described as the first three-dimensional Xerox machine.

Accounting for the most part, remains a legalistic and traditional practice, almost immune to self-criticism by scientific methods.

What exists, is possible.

There are, of course, a number of epistemological questions, some of which lie more in the province of the philosopher than they do the economist or the social scientist. The one with which I am particularly concerned here is that of the role of knowledge in social systems, both as a product of the past and as a determinant of the future.