Kathryn Minshew

When talking to first-time entrepreneurs, I often ask them: 'How do you know that people want your product or service?' As you can expect, the answer is often that they don't yet, but will know once they launch. And they're right. That's why it's critical to launch as quickly as possible so you can get that feedback.

If you're able to arrange a trial period with a new hire, do it. It will give both of you a chance to make sure the position is a good fit - and can help you avoid being in the awkward situation of wanting to fire someone three or four weeks in.

People have this idea that the more pious and devout I am, the more successful I am. Which is very dangerous. If you look at faith in that way, you're bound to fail at both - spiritually and in your career.

Most American Jews came from the lower middle classes, and therefore they brought with them not a lot of Jewish culture. The American Jewish story starts with Ellis Island, and the candy store in the Bronx.