I'm the reason your hopes won't rise.
Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job, buy the very best you can afford.
以这样奢侈的国君,去统治那些爱好奢侈的臣民,想要国家不动乱,是不可能的。 
The future of coal depends on balancing economic growth with environmental responsibility.
The challenge for policymakers is to create an environment where information flows freely and efficiently, enabling markets to function optimally.