Fools, Madness, and Wit

Though this be madness,
yet there is method in it.
- William Shakespeare (Hamlet, II, ii, 207)

Better a witty fool than a foolish wit.
-  William Shakespeare (Twelfth Night, I, v, 35)

Now my charms are all o'verthrown
And what strength I have's mine own.
- William Shakespeare (Tempest, Epilogue, I)