Grip the nettle firmly and it will become a stick with which to beat your enemy.

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.

Symbols are nothing but the natural speech of drama.

They have succeeded in accumulating a greater mass of objects, but the joy in the world has grown less.

The most powerful social media... it is not the internet, it is not Facebook - it is food. This connects all human beings.

Forgetfulness - a gift of God bestowed upon debtors in compensation for their destitution of conscience.

With any other movie, you're entering new territory, so it's quite different to be involved in something where it's the same characters, and the same people.

You can never discard too many bad ideas.

We can neither put back the clock nor slow down our forward speed, and as we are already flying pilotless, on instrument controls, it is even too late to ask where we are going.

Stop trying to write sentences and start trying to write stories.

I'd like to extend my career a little bit into different genres.

A lot of guys see the complexity of the game; I see the simplicity.