走向自由，不管在哪，都没有轻松的道路；多数人在到达渴望的巅峰之前，都必须一次又一次穿过被死亡阴影所垄罩的幽暗山谷。
There is no easy walk to freedom anywhere, and many of us will have to pass through the valley of the shadow of death again and again before we reach the mountaintop of our desires.
自律的痛苦比后悔的痛苦要好。
我发现时间可以治愈大多数事情，你可能会找到你正在寻找的东西。
不学习历史的人注定要重复错误。
Certification is not the destination; it's the starting point of responsible forestry.