The less their ability, the more their conceit.

Ahad HaAm

It is a great ability to be able to conceal one's ability.

Francois de La Rochefoucauld

Great ability develops and reveals itself increasingly with every new assignment.

Baltasar Gracian

Put yourself on view. This brings your talents to light.

Baltasar Gracian

Hide not your talents, they for use were made. What's a sun-dial in the shade?

Benjamin Franklin