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Fights over ideas are the most vicious of all. If it were merely food, or water, or shelter, we would work something out. But in the realm of ideas one can become idealistic .

Kim Stanley Robinson (2009). “Galileo's Dream”, p.423, Spectra
Fights over ideas are the most vicious of all. If it were merely food, or water, or shelter, we would work something out. But in the realm of ideas one can become idealistic .