Science fiction is very well suited to asking philosophical questions; questions about the nature of reality, what it means to be human, how do we know the things that we think we know.

Nothing erases the past. There is repentance, there is atonement, and there is forgiveness. That is all, but that is enough.

Four things do not come back: the spoken word, the sped arrow, the past life, and the neglected opportunity.

It is a misconception to think that during evolution humans sacrificed physical skill in exchange for intelligence: wielding one's body is a mental activity.

Contemplate the marvel that is existence, and rejoice that you are able to do so.

Brain damage is never a good idea, no matter what your friends say.

The prospect of living without interference, living in a world where windfalls and misfortunes were never by design, held no terror for him.

The hush of the night sky is the silence of a graveyard.

When Arecibo is not listening to anything else, it hears the voice of creation.

From the beginning I knew my destination, and I chose my route accordingly. But am I working toward an extreme of joy, or of pain? Will I achieve a minimum, or a maximum?

Like physical events with their causal and teleological interpretations, every linguistic event had two possible interpretations: as a transmission of information and as the realization of a plan.

The only un-distractable, un-destructable, "thing", yet also the foundation of all pure creation, is "nothing.

Thinking well of others, praying for them may or may not change them, but you will, for sure, experience peace and love.

I missed you, Angel. Not one day went by that I didn't feel you missing from my life.

I don't want to understand Facebook.

The irruption of the supernatural into our world is a much more enticing notion to explore than the same thing happening in some past time, or in a wholly imaginary world.

To truly be committed to a life of honesty, love and discipline, we must be willing to commit ourselves to reality.

I was hurrying through my own soul . . . I was leaning out . . . I was listening.

If I find God's mobile number, I wouldn't call Him, that would be too expensive!

At Christmas you can get real bargains. I saw one item marked down ten dollars. It was a yacht.

I love music and musicians. And seeing great artists dropped from labels was really frustrating and sad to me