The strangest of what is in the human being is his heart...

The strangest of what is in the human being is his heart, and in it are matters of wisdom and the antibodies to the one who opposes it.

When there is prosperity for him, greed humiliates him, and if greed excites him, the thriftiness destroys him, when despair overpowers him, the remorse kills him, and when the anger presents itself, the rage intensifies, and when he is happy and satisfied he forgets to conserve, and when fear seizes him he gets preoccupied by caution, and when security is widened for him his honour makes him complacent (and in another copy \u2018pride takes him over\u2019), and when new bounties come up for him pride takes him over, and when he is benefitted by money his richness makes him oppressive, and when poverty bites him he is preoccupied by the affliction (and in another copy \u2018he strives in the weeping\u2019), and when he is inflicted by hardship anxiety injures him, and when the hunger exhausts him he is disabled by the weakness, and when he over-eats he is upset by indigestion, so every deficiency is harmful to him, and every excess spoils him.