“Here and everywhere is the struggle for existence, life inextricably enmeshed with war. All life living at the expense of life, every organism eating other organisms forever.”

Source: Nervous Ills their Cause and Cure (1922), p. 20

Source: https://www.goodreads.com/author/quotes/14108295.alexis_karpouzos?page=2

Source: Dust & Decay

Source: A Ring of Endless Light

Source: The Story of Philosophy: The Lives and Opinions of the World's Greatest Philosophers

Source: Doctor Zhivago

Book VI, Ch. 1
Progress and Poverty (1879)
Context: In the plan of forcing by endurance an increase of wages, there are in such methods inherent disadvantages which workingmen should not blink. I speak without prejudice, for I am still an honorary member of the union which, while working at my trade, I always loyally supported. But, see: The methods by which a trade union can alone act are necessarily destructive; its organization is necessarily tyrannical. A strike, which is the only recourse by which a trade union can enforce its demands, is a destructive contest — just such a contest as that to which an eccentric, called "The Money King," once, in the early days of San Francisco, challenged a man who had taunted him with meanness, that they should go down to the wharf and alternately toss twenty-dollar pieces into the bay until one gave in. The struggle of endurance involved in a strike is, really, what it has often been compared to — a war; and, like all war, it lessens wealth. And the organization for it must, like the organization for war, be tyrannical. As even the man who would fight for freedom, must, when he enters an army, give up his personal freedom and become a mere part in a great machine, so must it be with workmen who organize for a strike. These combinations are, therefore, necessarily destructive of the very things which workmen seek to gain through them — wealth and freedom.

"Einstein's Reply to Criticisms" (1949), The World As I See It (1949)
Context: What is the meaning of human life, or of organic life altogether? To answer this question at all implies a religion. Is there any sense then, you ask, in putting it? I answer, the man who regards his own life and that of his fellow creatures as meaningless is not merely unfortunate but almost disqualified for life.

"The Human Condition: Between Appetite and Ingenuity", p. 1
Escape from Evil (1975)