Like at the end of my life, when I can tell that I don’t have long to live, I want to be able to look back and go like, “Wow, I saw the world from many points of view. I did many different things.” That is such a top value for me.

Every 90 days I lie in a whirling CT machine, dye coursing through my veins, and the doctors look to see whether the tumors in my liver are growing. If they are not, the doctors smile and schedule another scan. The rhythm has been the same since my doctors told me I had stage IV colon cancer two and a half years ago. I live for three months, take a deep breath and hope to start over again. I will probably do this for the rest of my life. Whatever that means.

I began to realize that coming face to face with my own mortality, in a sense, had changed both nothing and everything. Before my cancer was diagnosed, I knew that someday I would die, but I didn’t know when. After the diagnosis, I knew that someday I would die, but I didn’t know when. But now I knew it acutely. The problem wasn’t really a scientific one. The fact of death is unsettling. Yet there is no other way to live.

Yeah. These books are all around me and they'll be here when I go and I'm that sick. I just don't know when it ends. But in 2010, I got really ill and leukaemia was one of the things I was diagnosed with and eventually it will switch me off. So it raises the question: what do you do? Do you lie down and give up? Read the Bible? Or do you go on as you were reading and writing. And I've done the second and I've just done a little bit called Latest Readings which is about the books I've been reading lately and I could do another volume of that because I'm still reading.

As for his internationally renowned wife, professional tennis player and four-time Olympic gold medalist Serena Williams, he said he often asks her for advice on mastering a field.

Being an entrepreneur was the best decision I could’ve made, because not having a boss gave me the freedom to make my family a priority without compromising my work.

She'll show you what it means to be truly courageous and selfless. And you'll spend the rest of your life working to make her sacrifices worth it.

Because there, between those syrupy bites of waffles, you're gonna realize that you're meant to be an entrepreneur, not a lawyer.

That really crystallized for me what some really passionate founders who could write some code could do to change things, and this gave me the confidence to say, “You know what? They can do this. We can definitely do this.” ... So without a doubt, Reddit would not exist if it weren’t for Masters of Doom.

Thank goodness, too. Because that was a long-term investment in myself.