我知道自己能做什么，所以不在乎别人的想法或言论。
I know what I can do, so it doesn't bother me what other people think or say.
因果关系的阶梯有三个梯级：观察、行动和想象。
The value of unpaid work is often invisible in economic measures, yet it is the backbone of society.
"Books are mirrors: you only see in them what you already have inside you."
Always have a plan before you enter a trade.
资源开发必须在经济增长和环境管理之间取得平衡。