To be a good professional engineer, always start to study late for exams because it teaches you how to manage time and tackle emergencies.

Imagine the disincentive to software development if after months of work another company could come along and copy your work and market it under its own name...without legal restraints to such copying, companies like Apple could not afford to advance the state of the art.

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

I was a kind of hyper-intense person in my twenties and very impatient.

Until recently, over 98 percent of teachers just got one word of feedback: Satisfactory. If all my bridge coach ever told me was that I was 'satisfactory,' I would have no hope of ever getting better.

Being maniacal about something is very helpful.

In fact, batteries haven't improved over the last 100 years as much as they would need to in order to make that happen. So I'm invested in a lot of battery companies - and there's a lot that exists I'm not in. They're all having a tough time achieving it.