Rhodes originally wrote this on June 2, 1877, in Oxford. Later, that year in Kimberley, he made some additions and changes. What follows is that amended statement. The spelling and grammar errors were in the original. (source)
It often strikes a man to inquire what is the chief good in life; to one the thought comes that it is a happy marriage, to another great wealth, and as each seizes on his idea, for that he more or less works for the rest of his existence. To myself thinking over the same question the wish came to render myself useful to my country. I then asked myself how could I and after reviewing the various methods I have felt that at the present day we are actually limiting our children and perhaps bringing into the world half the human beings we might owing to the lack of country for them to inhabit that if we had retained America there would at this moment be millions more of English living. I contend that we are the finest race in the world and that the more of the world we inhabit the better it is for the human race. Just fancy those parts that are at present inhabited by the most despicable specimens of human beings what an alteration there would be if they were brought under Anglo-Saxon influence, look again at the extra employment a new country added to our dominions gives. I contend that every acre added to our territory means in the future birth to some more of the English race who otherwise would not be brought into existence. Added to this the absorption of the greater portion of the world under our rule simply means the end of all wars, at this moment had we not lost America I believe we could have stopped the Russian-Turkish war by merely refusing money and supplies. Having these ideas what scheme could we think of to forward this object. I look into history and I read the story of the Jesuits I see what they were able to do in a bad cause and I might say under bad leaders.