If you're changing the world, you're working on important things. You're excited to get up in the morning.

It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.

If your business is static, you're likely to have issues.

Optimism is important. You have to be a little silly about the goals you are going to set. There is a phrase I learned in college called, 'having a healthy disregard for the impossible.' That is a really good phrase. You should try to do things that most people would not do.

I remember turning in my first assignment in elementary school using the computer and the teachers were kind of confused that I had printed it.

It is often easier to make progress on mega-ambitious dreams. ... Since no one else is crazy enough to do it, you have little competition.

Sergey and I founded Google because we're super optimisitc about the potential for technology to make the world a better place. Think about how many people are underserved by transportation today, like those with disabilities, and how self driving cars will transform their lives. Or the wasted time you sit in your car every day commuting to and from work. Or the deaths and injuries that could be avoided.