Everything is equally difficult (designing a new paper clip or a guided missile).
Everyone knows that you should build the second model first.
If the boss is a dope, everyone under him/her is (or soon will be) a dope.
Half of something is worth more than all of nothing.
If you want a 50-50 deal, offer the other party 60 and ask for 40.
If you want to be different, you better be very good. If your product is really different, it better be very good.
If you want to know what the country will be like in the future, learn what the junior high kids are thinking now.