But the underlying psychological forces will still be there, taking their toll.

One never learned what social or psychological forces made the characters so glum.

Because they have magnitude and direction, these tensions can be described as psychological "forces".

Others attributed Monday's rush for the exits to purely psychological forces.

He brutally exposed the social and psychological forces that had shaped it.

The fear of falling prey to that monstrous man was indeed a powerful psychological force.

In the short run, psychological forces play a crucial role.

Not for long will he resist the psychological forces that I am preparing against him.

For the speed-up of change is a psychological force as well.

This power is not only something concrete but must also be considered as psychological force, embracing the entire world.