生活中唯一的限制是你自己设定的。

That we our largest bounty may extend Where nature doth with merit challenge.

You think when you wake up in the mornin yesterday don't count. But yesterday is all that does count.

不必担忧财富不多，只须担忧财富不平均，不必担忧人口稀少，只须担忧境内不安宁。……既来了，要使他们安家乐业。