If it's a question about stuff that matters to you personally, like favorite food, favorite piece of knowledge, favorite animal, it's hard not to have an opinion and want to quantify things.
There is nothing more harmful to you than improving only your material, animal side of life. There is nothing more beneficial, both for you and for others, than activity directed to the improvement of your soul.
The Anti-Vivisector does not deny that physiologists must make experiments and even take chances with new methods. He says that they must not seek knowledge by criminal methods, just as they must not make money by criminal methods. He does not object to Galileo dropping cannon balls from the top of the leaning tower of Pisa; but he would object to shoving off two dogs or American tourists.
The higher animals get their teeth without pain or inconvenience. Man gets his through months and months of cruel torture; he will never get a set which can really be depended on 'till a dentist makes him one.
I spend a hell of a lot of time killing animals and fish so I wouldn't kill myself. When a man is in rebellion against death, as I am in rebellion against death, he gets pleasure out of taking to himself one of the godlike attributes; that of giving it.
The Animals of the planet are in desperate peril and they are fully aware of this. No less than human beings are doing in all parts of the world, they are seeking sanctuary.
The indifference, callousness and contempt that so many people exhibit toward animals is evil first because it results in great suffering in animals, and second because it results in an incalculably great impoverishment of the human spirit.
Clothes therefore, must be the insignia of the superiority of man over all other animals, for surely there could be no other reason for wearing the hideous things
Man is always something worse or something better than an animal; and a mere argument from animal perfection never touches him at all. Thus, in sex no animal is either chivalrous or obscene. And thus no animal invented anything so bad as drunkeness - or so good as drink.