You have to expect things of yourself before you can do them.
你必须先对自己有所期望，然后才能做到。
没有任何一位总统能够忠实地、认真地履行他的职责，还能有闲暇时间。
The true measure of agricultural success is not just yield, but the health of our soil and communities.
我们不应承认自然事物的原因多于那些既真实又足以解释其现象的原因。
Efficiency in forestry doesn't mean cutting more—it means making every tree count.