Yes. I didn't want to be a writer, but I became one. And now I have many readers, in many countries. I think that's a miracle. So I think I have to be humble regarding this ability. I'm proud of it and I enjoy it, and it is strange to say it this way, but I respect it.

If you go into the field of medicine, I think any, very active protein like, let’s say interferons have been isolated, thanks to these techniques and then the question was, how should one apply them? In which kind of medical problems? Some, there were some deceptions but there were also discoveries that in certain other fields these products were very useful. Another example which has been widely successful is the product of human insulin which made medicine largely independent of insulins harvested from living animals and I think if one looks at these things these are really very good examples.

I literally said to them - all of our faces were on the - in the boxes on Zoom. And I welled up. And I said, oh my God, this is my dream. This is what I want - I've wanted to see my whole life of working at Ariel and all the things we've built, and making sure we all have a shot at this - narrowing this wealth gap, and putting our stamp on the industry and society.

I think three things. One is the great advances in auto safety. I mean, there are tens of thousands of people being saved every year because cars are safer, and millions of people over a decade, injuries prevented. I think that’s a good example of the need to make technology more humane. We may benefit from a lot of technologies, but they exact a cost. Emphysema, cancer, soil contamination, contaminated water, death and injury on the highway. We’ve got to put more effort on making them more humane.

As many of you know, the past three years have presented me with challenges in the form of injuries and surgeries. I've worked hard to return to full competitive form. But I also know my body's capacities and limits, and its message to me lately has been clear. I am 41 years old. I have played more than 1,500 matches over 24 years. Tennis has treated me more generously than I ever would have dreamt, and now I must recognize when it is time to end my competitive career.

Of all the gifts that tennis has given me over the years, the greatest, without a doubt, has been the people I've met along the way: my friends, my competitors, and most of all the fans who give the sport its life.