The deep, personal material of the latter half of your life is your children. You can write about your parents when they're gone, but your children are still going to be here, and you're going to want them to come and visit you in the nursing home.

"The unexamined life is not worth living."

除了诱惑，我什么都能抵抗。

The customer’s trust is the most valuable ingredient in any recipe.

Every day is a new opportunity.

The best leaders don't create followers, they create more leaders.

数学发现的过程不是关于到达目的地，而是关于旅程本身。