The melancholic and choleric, however, shared a sustained response (dryness), and the sanguine and phlegmatic shared a short-lived response (wetness).
en.wikipedia.org However, the choleric would be characterized by quick expressions of anger, while the melancholy would build up anger slowly, silently, before exploding.
en.wikipedia.org This is also related to the classical elements of air, water, earth, and fire; as sanguine, phlegmatic, melancholic, and choleric, respectively.
en.wikipedia.org Therefore, it was evident that the sanguine and choleric shared a common trait: quickness of response, while the melancholy and phlegmatic shared the opposite, a longer response.
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