The worst pain you can imagine is when something you love goes away and nothing you can do will ever bring it back.

The limitations in life do not necessary limit you.

The mind will enchain yourself, others or both. Your heart will set you / them free

We have to believe that the thought we have is piecing together for us the thing we are thinking of and is actually carrying it closer and closer to us!

Back then: to be paid more, one needed to increase the number of things that are by him known. Today: to be paid more, one needs to increase the number of people by whom he is known.

I think we need someone in a responsible political position to have the courage to say, 'Let's terminate human spaceflight.'

We need to unleash the military in unison with our partners in Europe and the Middle East to be effective.

I'm not a racist. That's what's so insane about this.

If one has made a mistake, and fails to correct it, one has made a greater mistake.

Activists are cultural artists. They envision a world that does not yet exist, and then take action to create that world.'

But the power of destiny is something awesome; neither wealth, nor Ares, nor a tower, nor dark-hulled ships might escape it.