Today's science fiction is tomorrow's science fact.

People who think they know everything are a great annoyance to those of us who do.

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

When stupidity is considered patriotism, it is unsafe to be intelligent.

So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe.

In life, unlike chess, the game continues after checkmate.

People think of education as something that they can finish.

There are no nations! There is only humanity. And if we don't come to understand that right soon, there will be no nations, because there will be no humanity.

A robot may not injure a human being, or, through inaction, allow a human being to come to harm.

Violence is the last refuge of the incompetent.

A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.

Open your eyes

I believe that the soul consists of its sufferings. For the soul that cures its own sufferings dies.

Don't waste the opportunity.

To me physical beauty is not the issue, vibrational beauty is and the most beautiful people I meet are those who are radiating the love and wisdom of the Divine force that breathes them.

A good writer wants from us — or has no right to ask more than — intelligence, good faith and time.

I think success is being exactly who God called us to be and fighting to your death to live that out.

I had been working on a second book with [David] Petraeus called Relentless. Obviously that book and the income that it would have generated went away.

God is more eager to answer than we are to ask.

Should [reformers] attempt more than the established habits of the people are ripe for, they may lose all and retard indefinitely the ultimate object of their aim.

My body is a little bit sore from all of the practicing and playing and training