One wit, like a knuckle of ham in soup, gives a zest and flavour to the dish, but more than one serves only to spoil the pottage.
Tobias Smollett (1820). “The expedition of Humphry Clinker”, p.161

One wit, like a knuckle of ham in soup, gives a zest and flavour to the dish, but more than one serves only to spoil the pottage.