Ludovico Ariosto

Man proposes, and God disposes.

When the devil grows old he turns hermit.

Nature made him, and then broke the mold.

This truth is a remedy against spiritual pride, namely, that none should account himself better before God than others, though perhaps adorned with greater gifts, and endowments.

I've seen 'Hamlet' many times, and Hamlet, he was just a hideous neurotic; he never changes. He doubts - all the way to the end, all the way until when he dies, he doubts.