In this ever-changing society, the most powerful and enduring brands are built from the heart. They are real and sustainable. Their foundations are stronger because they are built with the strength of the human spirit, not an ad campaign.

"I’m a normal guy who just happens to play tennis well."

当且仅当所有投资者都持有均值-方差有效的投资组合时，市场组合才是有效的。

Functions delay binding; data structures induce binding. Moral: Structure data late in the programming process.

The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight. Quality means conformance to requirements.