You need a lot of different types of people to make the world better.

Different times need different types of leadership.

We do need different types of propulsion to get to Mars. I wrote one of the first Ph.D. theses on that in the 1960s.

My go-to prebikini flat-ab move is the plank, all different types.

I get to partner up with all different types of opportunities.

I've been lucky to listen to lots of different types of music.