That last infirmity of noble minds. [ Milton ]

Mutability is the badge of infirmity. [ Proverb ]

Thirst of power and of riches now bear sway,
The passion and infirmity of age. [ Frowde ]

Fame is the spur that the clear spirit doth raise,
(That last infirmity of noble minds,)
To scorn delights and live laborious days. [ Milton ]

Idleness is more an infirmity of the mind than of the body. [ La Rochefoucauld ]

Discontent is the want of self-reliance: it is infirmity of will. [ Emerson ]

Must one rash word, the infirmity of age, throw down the merit of my better years? [ Addison ]

Infirmity and sickness may excite our pity; but desire and pleasure require the bloom and vigor of health. [ Rousseau ]

It is only an error of judgment to make a mistake, but it argues an infirmity of character to adhere to it when discovered. Or, as the Chinese better say, The glory is not in never falling, but in rising every time you fall. [ Bovee ]

Mutability is the badge of infirmity; it is seldom that a man continues to wish and design the same thing two days alike; now he is for marrying, and now a mistress is preferred to a wife; now he is ambitious and aspiring, presently the meanest servant is not more humble than he; this hour he squanders his money away, the next he turns miser; sometimes he is frugal and serious, at other times profuse, airy, and gay. [ Charron ]