What you call passion is not spiritual force, but friction between the soul and the outside world.
The force of mind is only as great as its expression; its depth only as deep as its power to expand and lose itself.
Modern politics is, at bottom, a struggle not of men but of forces.
Love as a force contributory to disease.
It is hard to force obedience, without encouraging resentment.
Civilization never recedes; the law of necessity ever forces it onwards.
All authority ultimately rests on force.