There is an old saying "well begun is half done"-'tis a bad one. I would use instead-Not begun at all 'til half done.
John KeatsThough the most beautiful creature were waiting for me at the end of a journey or a walk; though the carpet were of silk, the curtains of the morning clouds; the chairs and sofa stuffed with cygnet's down; the food manna, the wine beyond claret, the window opening on Winander Mere, I should not feel -or rather my happiness would not be so fine, as my solitude is sublime.
John KeatsWhat occasions the greater part of the world's quarrels? Simply this: Two minds meet and do not understand each other in time enough to prevent any shock of surprise at the conduct of either party.
John Keats