The Perpetual Struggle For Room And Food.

The World's Population Will Multiply More Rapidly Than The Available Food Supply.

The Constant Effort Towards Population, Which Is Found Even In The Most Vicious Societies, Increases The Number Of People Before The Means Of Subsistence Are Increased.

It Does Not, However, Seem Impossible That By An Attention To Breed, A Certain Degree Of Improvement, Similar To That Among Animals, Might Take Place Among Men. Whether Intellect Could Be Communicated May Be A Matter Of Doubt: But Size, Strength, Beauty, Complexion, And Perhaps Even Longevity Are In A Degree Transmissible... As The Human Race Could Not Be Improved In This Way, Without Condemning All The Bad Specimens To Celibacy, It Is Not Probable, That An Attention To Breed Should Ever Become General.

To Prevent The Recurrence Of Misery Is, Alas! Beyond The Power Of Man.

The Moon Is Not Kept In Her Orbit Round The Earth, Nor The Earth In Her Orbit Round The Sun, By A Force That Varies Merely In The Inverse Ratio Of The Squares Of The Distances.