In General It May Be Said That

[p]opulation, When Unchecked, Goes On Doubling Itself Every Twenty-five Years, Or Increases In A Geometrical Ratio. ... [t]he Means Of Subsistence, Under Circumstances The Most Favorable To Human Industry, Could Not Possibly Be Made To Increase Faster Than In An Arithmetical Ratio.

Capitals Accumulate Faster Than Population

Population, When Unchecked, Goes On Doubling Itself Every 25 Years Or Increases In A Geometrical Ratio.

Where Are We To Look For The Consumption Required But Among The Unproductive Labourers Of Adam Smith?.

The Most Effectual Encouragement To Population Is, The Activity Of Industry, And The Consequent Multiplication Of The National Products.