There are some persons who only disgust with their abilities, there are persons who please even with their faults.
It requires no small degree of ability to know when to conceal one's ability.
Sobriety is love of health, or inability to eat much.
Nature has concealed at the bottom of our minds talents and abilities of which we are not aware.
Nature creates ability; luck provides it with opportunity.
To know how to hide one's ability is great skill.
Old people love to give good advice; it compensates them for their inability to set a bad example.
Old men are fond of giving good advice to console themselves for their inability to give bad examples.