Suffering is the school of wisdom.
苦难是智慧的学校。
在野外，没有捷径。你必须为每一步付出努力。
"The truth is rarely pure and never simple."
你读得越多，知道的东西就越多。你学得越多，去的地方就越多。
Success in agriculture starts with respecting the land and understanding its rhythms.
The challenge with hepatitis C was not just to find the virus, but to understand how it evades the immune system.
心灵不是一个结构而是一个过程。
You have to be run by missionaries, not mercenaries.