After you finish the first 90% of a project, you have to finish the other 90%.

What was it like working with John Carmack on Quake? Like being strapped onto a rocket during takeoff – in the middle of a hurricane.

It's not the ideas; it's design, implementation and hard work that make the difference.

I now fully expect to spend the rest of my career pushing VR as far ahead as I can.

It is bad enough to be unconverted and going to hell. It is even worse to say, “I know it and will not cry for mercy.

I had seen people who had lost everything and everyone they loved to war, famine, and natural disasters.

Italians come to ruin most generally in three ways, women, gambling, and farming. My family chose the slowest one.

Those who laugh often never grow old.

I'm not the most accomplished of writers out there, but I feel that I quite effective all the same.

I have always believed that opera is a planet where the muses work together, join hands and celebrate all the arts.

One moment can change a day, One day can change a life and One life can change the world

The state is the nursing mother of human culture.

Nobody knows the world of emotion I'm inhabiting right now.

Travel ennobles the spirit and does away with our prejudices.