“There nearly always is a method in madness.”
“He may be mad, but there's method in his madness. There nearly always is method in madness. It's what drives men mad, being methodical.”
“There is method in my madness.”
“Madness in method, that's genius”
“Though this be madness, yet there is method in't.”
“Sometimes I feel sure he is as mad as a hatter and then, just as he is at his maddest, I find there is a method in his madness.”