用程序证明四色定理不会改变数学——它只是证明了这个挑战了一个世纪的定理是一个有限的问题。

The primary rules of obligation are those that require or forbid certain actions.

Quality is not a dream; it is a reality.

"A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people."

你必须愿意经常犯错；这没什么不对的。迈克尔教会我做出最佳判断，犯错，再做出下一个最佳判断，再犯错，做出第三个最佳判断，然后让你的资金翻倍。