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Tinkering is a way of understanding difficult problems, of wrapping our heads around them and quantifying the unknowns.

To keep every cog and wheel is the first precaution of intelligent tinkering.

Tinkering is something we need to know how to do in order to keep something like the space station running. I am a tinkerer by nature.

Intelligence is not to make no mistakes, but quickly to see how to make them good.

Every job leaves its residue, a bit of extra knowledge, a new skill-set.

When one thing ends, you put it away and start from scratch on the next thing.

I've found in my life that the parts that you're right for are the parts that you get. It's really usually quite easy because you're kind of right.

My personal mission has always been to empower people to be creative. But the Holy Grail of a tinkerer is to make something that makes something.

The main thing is to keep the main thing the main thing.

You make a ton of progress by making a ton of mistakes.