Even if I have no energy and I'm so tired, I don't give up.

I had always wanted to start a company, ever since I was very young.

When competitors try to innovate, I think it puts more pressure on us. The only thing is, we've got to work harder. They work two hours, we work three hours... Ultimately this is good for the end user.

We are an American business.

We built Zoom for the business customers.

My favorite book is 'Speed of Trust' by Stephen Covey.

I decided to come to the U.S. in the mid '90s because the Internet, which I knew was the wave of the future, was red hot here, but hadn't yet taken off in China.

I don't want to be only the most scalable platform, I want to be the most secure. To do that, it's not only Zoom's work, we need lot of people's help.

Some students just don't like online class.

A lot of people are counting on Zoom.

Any security issues, you have to be very hands on to really understand what's the exact problem, and then take quick action.

Once you have a culture problem, it's very hard to fix.

We have awesome, passionate customer success and social media teams, but when I see a customer who needs help or is unhappy, I take that personally.

If I were to spend investor money on nice furnishings and so forth, particularly early on, I might not have it for opportunities that can really grow our business.

I'm an engineer.

My biggest worry is that sometimes you know the problem, but you don't do anything about it until it gets too big to be fixed.

The smartphone created a huge economy, the cloud created a huge economy.

Millennials grew up realizing that they can get the job done without having to go to the office.

Money is not going to bring me happiness.

During the early stages of Zoom, I personally emailed every customer who canceled our service.

My barometer for choosing a board member is this: regardless of the business, can I make a lifelong friend?

Our operations in China are materially similar to our U.S. peers who also operate and have employees there.

In 2007 WebEx was acquired by Cisco and I became Cisco's Corporate VP of engineering, in charge of collaboration software.

When you hire someone, you are investing in them.