We (the DOE) are poisoning our people in the name of national security.

As I hurtled through space, one thought kept crossing my mind - every part of this rocket was supplied by the lowest bidder.

The most important thing we can do is inspire young minds and to advance the kind of science, math and technology education that will help youngsters take us to the next phase of space travel.

To sit back and let fate play its hand out and never influence it is not the way man was meant to operate.

We have an infinite amount to learn both from nature and from each other.

I don't know what you could say about a day in which you have seen four beautiful sunsets.

There are times when you devote yourself to a higher cause than personal safety.

I suppose the one quality in an astronaut more powerful than any other is curiosity. They have to get some place nobody's ever been.

Too many people, when they get old, think that they have to live by the calendar.

Zero G and I feel fine.

I am a stranger. I come in peace. Take me to your leader and there will be a massive reward for you in eternity.

Watering a dead flower will not bring it back to life.

When you told me you loved me," Lily's eyes widened when she looked at Lux, "You saved the world.

A lawful kiss is never worth as much as a stolen one.

When the shingles hissed in the rain incendiary, other values were revealed to us

It is difficult to persuade mankind that the love of virtue is the love of themselves.

Dare to let your dreams reach beyond you...

She could not mourn. She could no longer weep grasping the essence of annihilation, she wished only to cease, to be no more, as if sunk in some profound sleep devoid of wakening.

Though under-instruction is a bad thing, it is not impossible that over-instruction may be worse.

I'm sorry, could you please tell me what the definition of the word "is" is?