Tony Fadell

I've learnt something from every failure. The products I helped design at the first two companies I worked for were utter failures. But now I know why.

If you look at most successful startups, they're run by people in their mid to late forties, who've gone through the trenches multiple times and had multiple failures, so they understand.

I learned the power of 'no.' No is really important. Entrepreneurs are told to say 'yes, yes, more, more.'