Of course the Silicon Valley is unique and Berlin is not yet comparable. But of all the different cities that are building a startup infrastructure, Berlin is the one with the most similar energy.

The biggest risk is not taking any risk.

Don't discount yourself, no matter what you're doing. Everyone has a unique perspective that they can bring to the world.

I think a simple rule of business is, if you do the things that are easier first, then you can actually make a lot of progress.

Move fast, take risks, it's okay to try big things you're better off trying something and having it not work and learning from that than having not done anything at all.

The biggest risk is not taking any risk... In a world that changing really quickly, the only strategy that is guaranteed to fail is not taking risks.

People have really gotten comfortable not only sharing more information and different kinds, but more openly and with more people - and that social norm is just something that has evolved over time.

When you want to change things, you can't please everyone. If you do please everyone, you aren't making enough progress.

My number one piece of advice is: you should learn how to program.

If things aren’t breaking, then you’re not moving fast enough. People learn by making mistakes.

People think innovation is just having a good idea but a lot of it is just moving quickly and trying a lot of things.

Okay, ' she said. And that was that. The shortest fight we'd ever had.

I love the way Tyra Banks dresses up - she looks so elegant and glamorous in whatever she wears. The confidence and attitude she exudes on and off the ramp is remarkable.

Our founders did not write that 'We hold these Truths to be self-evident, that all US Persons are created equal.'

Mathematicians do not study objects, but the relations between objects.

I also read about Heathcliff's unexpected three-year career in Hollywood under the name Buck Stallion and his eventual return to the pages of Wuthering Heights.

I believe in love that's fun, that is caring, giving, and that is honest.

It is not the opinions or the vices of private individuals that are harmful to the State, but rather the behavior of public figures.

I don't know if, at the end of the day, how brave Saddam Hussein would be if he were stripped of his bodyguards and everything else.

Look wide, beyond your immediate surroundings and limits, and you see things in their right proportion. Look above the level of things around you and see a higher aim and possibility to your work.

We have bad things happen, but it's not like Syria, which we ignore and pretend doesn't happen. We've got it pretty good, no matter who the president is, to be honest.