投资者应专注于他们能控制的事情：成本、分散投资和时间范围。
Investors should focus on what they can control: costs, diversification, and time horizon.
In the act of writing, we confront our deepest fears and desires.
The most advanced technology is worthless if it doesn't serve the farmer's needs.
数学不是沿着一条清理得很好的高速公路小心行进，而是进入一个陌生的荒野的旅程，探险者常常会迷路。
The challenge of modern physics is not just to understand the universe, but to understand our place within it.