Answer: If it's in your opinion, then no. But if it's somebody else's opinion that you don't agree with, then you do have to cite your sources.
I hope that makes sense!
The Warring States period (481/403 BCE - 221 BCE) describes the three centuries when various rival Chinese states battled viciously for territorial advantage and dominance. Ultimately the Qin state was victorious and established the first unified Chinese state. Besides incessant warfare, and probably because of it, the period saw significant developments in society, commerce, agriculture, philosophy, and the arts, setting the foundations for the subsequent flourishing of Imperial China. Hope this helps. If dnt i'll try to edit and make the right answer. ;) bye
The main two problems that these progressives attempted to reform were corruption in government and business, as well as making sure that a large amount of public wealth did not end up in the hand of people who were already rich.
Answer my is a because if you do invest in something it needs to be in demand for people to want it