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

Different times need different types of leadership.

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

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.

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

Having different types of stocks in your portfolio can enhance returns.