I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't...The pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.
The fish in the water is silent, the animals on the earth is noisy, the bird in the air is singing. But man has in him the silence of the sea, the noise of the earth and the music of the air.
If a group of beings from another planet were to land on Earth - beings who considered themselves as superior to you as you feel yourself to be to other animals - would you concede them the rights over you that you assume over other animals?
human animals and nonhuman animals can communicate quite well; if we are brought up around animals as children we take this for granted. By the time we are adults we no longer remember.
The animal tends to eat with his stomach, and the man with his brain. When the animal's stomach is full, he stops eating, but the man is never sure when to stop. When he has eaten as much as his belly can take, he still feels empty, he still feels an urge for further gratification.
God made all the animals in a single day; he could have swept them all away in the flood and re-created them in one day when they were again needed. Therefore it was an odd idea to save specimens of them for eleven months in the ark, whilst aware that eight persons could not feed or water them by any human possibility. If they were to be preserved by miracle, the ark was not necessary - to let them swim would have answered the purpose and been more indubitably miraculous.
To the size of the state there is a limit, as there is to plants, animals and implements, for none of these retain their facility when they are too large.
And not only did he learn by experience, but instincts long dead became alive again. The domesticated generations fell from him. In vague ways he remembered back to the youth of the breed, to the time the wild dogs ranged in packs through the primeval forest and killed their meat as they ran it down.