Married life had taught Toran the futility of arguing with a female in a dark-brown mood.

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.

The world’s most lethal venom is not found on the tongues of serpents, but on the tongues of a disgruntled wife.

Truth, like light, blinds. Falsehood, on the contrary, is a beautiful twilight that enhances every object.

Total teachers aren't perfect teachers.

In our household, the Bible, the Koran and the Bhagavad Gita sat on the shelf alongside books of Greek and Norse and African mythology

The Iraqi government and most Iraqis understand that they have to bring back the Sunni Arab 20, 25 percent of the population. It won't work with these Shia militias running amok in these areas.

Know what the best thing about insomnia is? That I get to stay up all night figuring it out.

No unborn baby has ever had the right to choose or deny its own destruction.

The problem with holding a grudge is that your hands are then too full to hold onto anything else.

The happiest youth, viewing his progress through, What perils past, what crosses to ensue, Would shut the book, and sit him down and die.