For if you admit the _form_ of men as a justification of slavery, you may subjugate your own brother: if _features_, then you must quarrel with all the world: if _colour_, where are you to stop?
It is evident, that if you travel from the equator to the northern pole, you will find a regular gradation of colour from black to white.
Now if you can justly take him for your slave, who is of the deepest die, what hinders you from taking him also, who only differs from the former but by a shade.

Thus you may proceed, taking each in a regular succession to the poles.

But who are you, that thus take into slavery so many people?
Where do you live yourself?
Do you live in _Spain_, or in _France_, or in _Britain_?
If in either of these countries, take care lest the _whiter natives of the north_ should have a claim upon yourself .-- But the argument is too ridiculous to be farther noticed.
Having now silenced the whole argument, we might immediately proceed to the discussion of other points, without even declaring our opinion as to which of the suppositions may be right, on which it has been refuted; but we do not think ourselves at liberty to do this.

The present age would rejoice to find that the scriptures had no foundation, and would anxiously catch at the writings of him, who should mention them in a doubtful manner.

We shall therefore declare our sentiments, by asserting that they are true, and that all mankind, however various their appearances are derived from the same stock.
To prove this, we shall not produce those innumerable arguments, by which the scriptures have stood the test of ages, but advert to a single fact.