In a hurry and on my way out the door to catch a flight for a recent business trip, I stuffed a notebook in my bag I planned to use to take notes during meetings. This was a trip to speak with LPs and GPs about infrastructure investment and would culminate in a dinner in New York City to discuss an initiative our firm is supporting — the Global Infrastructure Investors Association (GIIA).

When I took out the notebook in Austin before our first meeting, I realized it was one I had used at our inaugural Institutional Investing in Infrastructure (I3) conference five years ago, and as I thumbed through the pages, I saw a few quotes that I think most people involved with institutional infrastructure investment can still appreciate today:

• “The more I know, the less I understand.”

• “We don’t understand it, but we are interested.”

• “The pattern seems to be that real estate is as good a place as any to start an infrastructure program. We’