From June sidebar.

If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
~George Bernard Shaw

The best way to have a good idea is to have lots of ideas.
~Linus Pauling

Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.
~Georg Christoph Lichtenberg