The secret of change is to focus all of your energy not on fighting the old, but on building the new.
每一种东西的价格都会因时间和地点的不同而涨落;每一次这样的变化都会改变货币的购买力。
I don't care about being cool. I care about being happy.
The greatest happiness is to know the source of unhappiness.
农业现代化不是简单的机械化,而是要让农民真正掌握科技,用智慧种地。