Natural law is that indicated to men by nature. You have reared a child; he owes you respect as a father, gratitude as a benefactor. You have a right to the products of the soil that you have cultivated with your own hands. You have given or received a promise; it must be kept.
Human law must in every case be based on natural law. All over the earth the great principle of both is: Do not unto others what you would that they do not unto you. Now, in virtue of this principle, one man cannot say to another: "Believe what I believe, and what thou canst not believe, or thou shalt perish." Thus do men speak in Portugal, Spain, and Goa. In some other countries they are now content to say: "Believe, or I detest thee; believe, or I will do thee all the harm I can. Monster, thou sharest not my religion, and therefore hast no religion; thou shalt be a thing of horror to thy neighbours, thy city, and thy province."
If it were a point of human law to behave thus, the Japanese should detest the Chinese, who should abhor the Siamese; the Siamese, in turn, should persecute the Thibetans, who should fall upon the Hindoos. A Mogul should tear out the heart of the first Malabarian he met; the Malabarian should slay the Persian, who might massacre the Turk; and all of them should fling themselves against the Christians, who have so long devoured each other.
The supposed right of intolerance is absurd and barbaric. It is the right of the tiger; nay, it is far worse, for tigers do but tear in order to have food, while we rend each other for paragraphs.
Next: Section 7