Steve Jobs: ‘It’s really hard’ (video)

Perseverance is the essence of Trial and Error. Without it, mindset and passion are worthless. It is the one trait that will keep you going when everything around you says you should quit.

“And you have to do it over a sustained period of time. So if you don’t love it, if you’re not having fun doing it, you’re going to give up.”

From his joint appearance with Bill Gates at D5 in 2007, talking about what it takes to be “successful” in the eyes of society: