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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Expression of Emotion in Man and Animals by Charles Darwin: deprived of his reason, ever become so brutal in character,
as some do, unless he has the brute nature within him?"[12] This
question must, as it would appear, he answered in the affirmative.
_Anger, Indignation_.--These states of the mind differ from rage only
in degree, and there is no marked distinction in their characteristic signs.
Under moderate anger the action of the heart is a little increased,
the colour heightened, and the eyes become bright. The respiration
is likewise a little hurried; and as all the muscles serving for this
function act in association, the wings of the nostrils are somewhat
raised to allow of a free indraught of air; and this is a highly
characteristic sign of indignation. The mouth is commonly compressed,
 Expression of Emotion in Man and Animals |