" I love you.’ For a start, we’d better put these words on a high shelf; in a square box behind glass which we have to break with our elbow; in the bank. We shouldn’t leave them lying around the house like a tube of vitamin C. If the words come too easily to hand, we’ll use them without thought; we won’t be able to resist. Oh, we say we won’t, but we will. We’ll get drunk, or lonely, or – likeliest of all – plain damn hopeful, and there are the words gone, used up, grubbied "

― Julian Barnes , A History of the World in 10½ Chapters