学习必须是为了切实提升自己，这样才能安静专一，智慧日渐增长。

实现明天的唯一限制将是我们今天的疑虑。

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.

唯一的失败是不去尝试。