Jack Of All Trades Quotes by Immanuel Kant, Christopher Walken, Marcus Brigstocke, Evel Knievel, Napoleon Hill and many others.

All trades, arts, and handiworks have gained by division of labor… Where the different kinds of work are not distinguished and divided, where everyone is a jack-of-all-trades, there manufactures remain still in the greatest barbarism.
Well, I was sort of a jack-of-all-trades in show business for a long time. I was a singer and a dancer and then I got a job as an actor.
My purist comedy friends accuse me of being a Jack of all trades and master of none.
I’m not a jack of all trades; I’m a master of many. I don’t feel there is anything I can’t do if I want to.
The jack-of-all-trades seldom is good at any. Concentrate all of your efforts on one definite chief aim.