Andrew J. Bernstein

Once you have love as a motivator in a story, your character is free to do anything. Once you say the character is in love, he can do the craziest thing that nobody would do who's not in love. Once you're in love, you have that excuse to go and do whatever you want.

Ronald Reagan, when he was campaigning for President, said that he would break relations with Communist China and re-establish diplomatic relations with Taiwan. But when he got into office, he pursued a very different policy of engagement with China and of increasing trade and business ties with China.