If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."

  有些书应该只是尝试一下，有些应该被吸收，而有极少数书应该被咀嚼和消化。

我喜欢挑战自己。

植物油作为发动机燃料的使用在今天看来可能微不足道，但这些油或许会随着时间的推移变得像石油和煤焦油产品一样重要。

如果你有一个好主意，并且你做得对，它就会成功。