Never let your sense of morals get in the way of doing what's right.

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.

If only I knew... If only baby... If only...

Only when women wield power in significant numbers will we create a society that genuinely works for all women … that will be a society that works for everyone.

There wouldn't be no grime without me.

Once more it was borne in on him that marriage was not the safe anchorage he had been taught to think, but a voyage on uncharted seas.

Whatever it is, go back and do it again.

A cigarette is the only consumer product which when used as directed kills its consumer.

The American has dwindled into an Odd Fellow,-one who may be known by the development of his organ of gregariousness.

There is no coloration to rights. Everybody has rights. I don't care who you are, where you come from. You got rights. I got rights. All God's children got rights.

Talking wisely to the ignorant is throwing precious seeds to the desert sands!

I am all for controlling guns.