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A picture must be a thing in itself, not a representation of something else.

The only thing of value is the thing you cannot buy.

The key to successful investing is to have the patience to wait for the right opportunity.

我的生命是有限的，而知識(shí)是無限的。用有限的生命去追求無限的知識(shí)，是很危險(xiǎn)的！