Many teens draw the line at any costume idea they see as uncool.
Right now I'm having difficulty deciding where you'd draw the line.
In this regard it is somewhat difficult to draw the line between that which is a rational and scientific method for preventing waste of good material and sophistication pure and simple.
It may be difficult in each case to draw the line between social duty and individual perfection.
But the same texts which draw the line between the two classes make it clear that there were no other guarantees to the maintenance of the rights of the superior rustics than the moral sense and the self-interest of their masters.