Perception is not determined simply by stimulus patterns; rather it is a dynamic searching for the best interpretation of the available data.

The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land is yet to come.

译文：清贫的生活，对读书人来说，就是顺境；节俭的日子，对种田人来说，就是丰收的年岁。赏析：读书要耐得住寂寞。清贫的生活能排除浮华奢糜之事，否则只会扰乱身心与学业。节俭是良好的美德，也是人类生存之需要。如果平常俭约，有所积蓄，即使是收成很差，也能丰衣足食。假如不懂得节俭，泿费粮食，即使年年丰收，也会缺衣少食。

你得先学会爬才能走，先学会走才能跑。