The only limit to our realization of tomorrow will be our doubts of today.

In the short run, the market is a voting machine but in the long run, it is a weighing machine.

当其他年轻人都在下西洋跳棋时，我已在下西洋象棋了。

The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.