There are five ways in which a human being reacts toward a source of danger.

Peter," Saavik said, "you know that I sometimes have difficulty understanding the way human beings react.

Human beings react to these things in in different ways.

Spacer robots knew how human beings reacted to food.

No human being could react this fast.

Some human beings react adversely to her species, but the reaction correlates almost a hundred percent with hay fever.

The new tenth-of-a-second clock, the main target of instant replay, is a disaster and should be eliminated, because human beings can't react that fast.

'Of course, you have no way of telling whether or not human beings would react in exactly the same way.'

It is "presumed that human beings will react predictably and autonomically" to the use of ideographs.

This self-experiment showed once again that human beings react much more sensitively than animals to psychoactive substances.