Logic comes afterwards. It’s how we retrace our steps. It’s being wise after the event. Before the event you have to be very silly.

If we have learned one thing from the history of invention and discovery, it is that in the long run – and often in the short one – the most daring prophesies seem laughably conservative.

There are only two ways to live your life. One is as though nothing is a miracle; the other is as though everything is a miracle.

Do you have the discipline to be a free spirit?

The world is getting better and better and worse and worse faster and faster.