可持续性必须有利可图，否则就无法持续——这是我们在现代农业中必须解决的挑战。
Will you be clever at the expense of others， or will you be kind？
A healthy forest ecosystem supports both nature and commerce.
保持饥饿，保持愚蠢。
The limits of sense are not to be determined by the narrow bounds of our own capacities.
