The more rules you have about how people have to be, how life has to be for you to be happy, the less happy you’re going to be.
It doesn't matter if I'm only to be gone four days, as in this case; I take six months' supply of reading material everywhere. Anyone who needs further explication of this eccentricity can find it usefully set out in the first pages of W. Somerset Maugham's story "The Book-Bag.