安全不是优先事项，而是一种价值观。你无法优先考虑永远不应妥协的事情。

The key to successful investing is to have a strong understanding of the fundamentals, a disciplined approach, a clear understanding of the market, and a long-term perspective.

You cannot not know history.

Competitive strategy is about being different. It means deliberately choosing a different set of activities to deliver a unique mix of value.