今天看了一则新闻：President and Mrs. Bush Release 2006 Tax Return
"President and Mrs. George W. Bush reported taxable income of $642,905 for the tax year 2006. This resulted in a total of $186,378 in federal income taxes paid by President and Mrs. Bush.
  The President's 2006 income included salary earned as President and investment income from the trusts in which their assets are held.
  President and Mrs. Bush contributed $78,100 to churches and charitable organizations, including..."

1、原来美国所有人的income、tax和contribution都是可以查到的。这应该是他们contribute的一个因素吧，从assets来的钱，再contribute一部分出去。收入100，税29，捐赠12，还剩59。
2、光是salary是earn不了这么多的，所以要用assets来投资trusts，我记得在《Rich Dad, Poor Dad》里面读到，不是所有的人都能投资trusts，要有钱到了一定程度以后才可以。
3、盖茨和巴菲特的捐款才叫捐嘛，布什先生捐了12%，也就是意思意思啦～