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At twenty-one, I was a divorced single mother. At thirty, I was struggling to feed my children. At forty, I was starting over in a new country. At fifty, I was rebuilding my career. At sixty, I walked the runway at Fashion Week. Life begins at every age—if you dare to make a plan.

He who can bear with your ignorance has found a true friend.

The true value of a mathematician lies in the problems they leave behind.

The discipline of the written word punishes both stupidity and dishonesty.

建筑師最重要的工具是好奇心。

最好的交易者是那些能夠獨立思考的人。