But the different forms of motion have their own contraries in other forms; thus destruction is the contrary of generation, diminution of increase
, rest in a place, of change of place.
But we have better evidence on this subject than mere theoretical calculations, namely, the numerous recorded cases of the astonishingly rapid increase of various animals in a state of nature, when circumstances have been favourable to them during two or three following seasons.
Hence we may confidently assert, that all plants and animals are tending to increase at a geometrical ratio, that all would most rapidly stock every station in which they could any how exist, and that the geometrical tendency to increase must be checked by destruction at some period of life.
A large number of eggs is of some importance to those species, which depend on a rapidly fluctuating amount of food, for it allows them rapidly to increase in number.
In looking at Nature, it is most necessary to keep the foregoing considerations always in mind--never to forget that every single organic being around us may be said to be striving to the utmost to increase in numbers; that each lives by a struggle at some period of its life; that heavy destruction inevitably falls either on the young or old, during each generation or at recurrent intervals.
Our wheelwright extolled my wheeled plows because he wished to increase his own business, so I secured an ally in him; but in this matter, as in all others, I sought to make the good of one conduce to the good of all.
"Then I turned my attention to another kind of production, that should increase the welfare rather than the wealth of these poor folk.
Time goes on and brings changes to pass, property increases or diminishes in men's hands, all the various readjustments have to be duly regulated, and in this way principles of social order are established.
In proportion therefore, as the repulsiveness of the work increases, the wage decreases.
But with the development of industry the proletariat not only increases in number; it becomes concentrated in greater masses, its strength grows, and it feels that strength more.
There was talk of all countries putting bounties on children to increase
the birth rate, but it was laughed to scorn by the arithmeticians, who pointed out that China was too far in the lead in that direction.
The French army pushed on to Moscow, its goal, its impetus ever increasing as it neared its aim, just as the velocity of a falling body increases
as it approaches the earth.