《诗经》上说“必须选择所使用的染料，必须谨慎地来浸染”，就是这个意思。 

I don't have to be a role model for anyone.

The natural price of labor is that price which is necessary to enable the laborers, one with another, to subsist and to perpetuate their race, without either increase or diminution.

The only impossible journey is the one you never begin.

We need to be obsessed with our customers' unmet, unarticulated needs.

The true revolutionary is guided by a great feeling of love.