“Hegel on sacrifice. The animal dies. The man becomes alert.”

“With most animals, as with man, the alertness of the senses diminishes after years of work, after domestic habits and progress of culture.”

“If a man dies fighting for his own freedom, it is not a sacrifice: he is not willing to live as a slave; but it is a sacrifice to the kind of man who's willing.”

“There can be no progress nor achievement without sacrifice, and a man's worldly success will be by the measure that he sacrifices his confused animal thoughts, and fixes his mind on the development of his plans, and the strengthening of his resolution and self-reliance.”

“Wild animals almost never die of old age: starvation, disease, or predators catch up with them long before they become really senile. Until recently this was true of man too. Most animals die in childhood, many never get beyond the egg stage. Starvation and other causes of death are the ultimate reasons why populations cannot increase indefinitely.”

“He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.”