Reality, in its quantitative aspect, must be considered as a system of populations... The general study of the equilibria and dynamics of populations seems to have no name; but as it has probably reached its highest development in the biological study known as 'ecology,' this name may well be given to it.

Consumption is the death of capital, and the only valid arguments in favor of consumption are arguments in favor of death itself.

The concept of a value-free science is absurd.

The human condition can almost be summed up in the observation that, whereas all experiences are of the past, all decisions are about the future. It is the great task of human knowledge to bridge this gap and to find those patterns in the past which can be projected into the future as realistic images.

Humble, honest, ignorance is one of the finest flowers of the human spirit

All knowledge is gained through an orderly loss of information.

Deciding under uncertainty is bad enough, but deciding under an illusion of certainty is catastrophic.