Sheldon: That's no reason to cry. One criesbecause one is sad. For example, I cry because others are stupid, and thatmakes me sad. (S03E10)(哭的原因)

　　Leonard: You are beautiful, you know that?You pop, sparkle and buzz electric. I'm going to pick you up at eight, show youa night you will never forget. (S04E07) (Leonard speak to FBIgirl)