Sentence examples for be an old problem from inspiring English sources

It may simply be an old problem that is meeting its moment.

it's an old problem of nature, the nature of deductive reasoning, because human beings are rational, or like to be rational.

This is an old problem.

That's an old problem.

"Not Invented Here" is an old problem at Sony.

It is an old problem with a new twist.

Water is an old problem for the trade center.

It is an old problem for the Devils.

It is an old problem that is rampant in contemporary society.

Principals bullying staff is an old problem about which there is little research.

Discretization of SYM theories is an old problem in lattice field theory.