Avoid late and unseasonable Studies, for they murder Wit, and are very prejudicial to Health. The Muses love the Morning, and that is a fit Time for Study. After you have din’d, either divert yourself at some Exercise, or take a Walk, and discourse merrily, and Study between whiles. As for Diet, eat only as much as shall be sufficient to preserve Health, and not as much or more than the Appetite may crave. Before Supper, take a little Walk, and do the same after Supper. A little before you go to sleep read something that is exquisite, and worth remembering; and contemplate upon it till you fall asleep; and when you awake in the Morning, call yourself to an Account for it.
By the way, if this page isn’t what you’re looking for, I have a HUGE list of inspirational quotes by topic here.