革命是一场漫长而艰苦的斗争，但它是实现真正独立和自由的唯一途径。
The revolution is a long and arduous struggle, but it is the only way to achieve true independence and freedom.
It is a capital mistake to theorize before one has data.
If you spend more than 13 minutes analyzing economic and market forecasts, you've wasted 10 minutes.
如果你花超过13分钟分析经济和市场预测，你就浪费了10分钟。
What has destroyed every previous civilization has been the tendency to the unequal distribution of wealth and power.