Don't ask host whether beggarliness or rich and honored, health or invalidism, the dog will guard by the side of the host's body;

不问主人是否贫穷或富贵、健康或病弱，狗都会守在主人的身旁；

Like Darwin, Florence Nightingale could focus ruthlessly on her work because of the invalidism which allowed her to retreat from social life.

和达尔文一样，南丁格尔也为了一心扑在工作上而以身体羸弱为借口逃避社交。