投资中最危险的四个字是:“这次不同。”
The four most dangerous words in investing are: 'this time it's different.'
Efficiency in forestry doesn't mean cutting more—it means making every tree count.
科学的进步不是一条直线,而是一个螺旋,总是在前进,又总是回到起点。
要学会控制投资风险,使用适当的风险管理工具。