Intemperance destroys both the knowledgeable and the ignorant

 

Thou hast not half that power to do me harm,

As I have to be hurt:

oh gull, oh dolt,

As ignorant as dirt!

-- William Shakespeare, Emilia to Othello, Act V, Scene 2

"Wit depends on dilatory time"

Ignorance is bliss

 

I had been happy

So I had nothing known.

Oh now, for ever

Farewel the tranquil mind! Farewel content!

-- William Shakespeare, Othello, Act III, Scene 3