Henry IV Part 2 4.3: 42
... that’s no marvel, he drinks no wine. There’s never none of these demure boys come to any proof, for thin drink doth so over-cool their blood, and making many fish-meals, that they fall into a kind of male green-sickness, and then when they marry, they get wenches. They are generally fools and cowards, which some of us should be too, but for inflammation. A good sherris-sack hath a twofold operation in it. It ascends me into the brain, dries me there all the foolish and dull and crudy vapors which environ it, makes it apprehensive, quick, forgetive, full of nimble, fiery, and delectable shapes, which deliver’d o’er to the voice, the tongue, which is the birth, becomes excellent wit. The second property of your excellent sherris is the warming of the blood, which before (cold and settled) left the liver white and pale, which is the badge of pusillanimity and cowardice; but the sherris warms it, and makes it course from the inwards to the parts’ extremes. It illumineth the face, which as a beacon gives warning to all the rest of this little kingdom, man, to arm, and then the vital commoners and inland petty spirits muster me all to their captain, the heart, who great and puff’d up with this retinue, doth any deed of courage; and this valor comes of sherris. So that skill in the weapon is nothing without sack (for that sets it a-work) and learning a mere hoard of gold kept by a devil, till sack commences it and sets it in act and use. Hereof comes it that Prince Harry is valiant, for the cold blood he did naturally inherit of his father, he hath, like lean, sterile, and bare land, manur’d, husbanded, and till’d with excellent endeavor of drinking good and good store of fertile sherris, that he is become very hot and valiant. If I had a thousand sons, the first humane principle I would teach them should be, to forswear thin potations and to addict themselves to sack.