Whatever you're meant to do, do it now. The conditions are always impossible.

The greatest risk in agriculture is not taking any risks at all.

科学的力量在于它的普遍性和客观性，它超越了文化和国界。

The most sustainable competitive advantage is learning faster than your competition.

To tax the larger incomes at a higher percentage than the smaller， is to lay a tax on industry and economy； to impose a penalty on people for having worked harder and saved more than their neighbors.