Tact in audacity is knowing how far you can go without going too far.

Being tactful in audacity is knowing how far one can go to far.

How far you can go without destroying from within what you are trying to defend from without?

Without heroes, we are all plain people and don't know how far we can go.

The problem in defense is how far you can go without destroying from within what you are trying to defend from without.

Tact consists in knowing how far to go too far