In a calm, even-tempered, and composed manner; without becoming upset or angry.
From 'equanimous' (composed, calm), derived from Latin 'aequanimus' combining 'aequus' (equal) and 'animus' (mind/spirit)—literally 'equal-minded,' a mind unmoved by emotion.
Stoic philosophers literally meant 'equal mind'—keeping your mind at the same level despite life's ups and downs, which is why equanimity became the gold standard of calm.
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