natural speed please
Referring certain events to bright or dark pages of history is very subjective. Usually all periods of wars are reffered to dark pages of history, epochs of great discoveries,technological progress, achieving consensus on disputed problems traditionally may be regarded as bright pages of history.
Happy is the country that has no history.
If you want peace, prepare for war.
Take not a musket to kill butterfly.
Love your neigbour , yet pull not down your fence.
The pen is mightier than the sword.
History repeats itself.
All is fair in love and war.