真理
We don't inherit the earth from our ancestors; we borrow it from our children. This truth guides every decision we make.
To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact.
In the examination of the parts of animals, I have diligently endeavored to arrive at the truth.
The forest doesn't need us, but we need the forest—this truth should guide every decision we make in forestry.