The proposition that the meek (that is the adaptable and serviceable), inherit the earth is not merely a wishful sentiment of religion, but an iron law of evolution.
Kenneth E. BouldingAt the opposite pole from the gift is tribute - that is, a grant made out of fear and under threat. A threat is a statement of the form "you do something that I want or I will do something that you do not want.
Kenneth E. BouldingReality, 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.
Kenneth E. Boulding