Besides, in a case of this kind it is sometimes difficult to say which is cause and which effect, or how much the one acts and reacts on the other.
"Contemporary Socialism"
John Rae
But little by little, with halting steps, the rivalry of parties built up the responsibility of ministers, and this in turn helped to perpetuate the party divisions; for the parliamentary system, like every rational form of government, reacts upon and strengthens the conditions of its own existence.
"The Government of England (Vol. I)"
A. Lawrence Lowell
This stuff is too new for us to know how it reacts in all cases.
"Tangle Hold"
F. L. Wallace