Now what is Judge Douglas Popular Sovereignty? It is, as a principle, no other than that, if one man chooses to make a slave of another man, neither that other man nor anybody else has a right to object.
The more progress physical sciences make, the more they tend to enter the domain of mathematics, which is a kind of centre to which they all converge. We may even judge the degree of perfection to which a science has arrived by the facility with which it may be submitted to calculation.
When Judge Douglas says that whoever, or whatever community, wants slaves, they have a right to have them, he is perfectly logical if there is nothing wrong in the institution; but if you admit that it is wrong, he cannot logically say that anybody has a right to do wrong.
If you spend too much time trying to find out what is good or bad about someone else, you'll forget your own soul and end up exhausted and defeated by the energy you have wasted in judging others.