But the law cannot give specific directions in advance to meet every need and detail of administration.
The law cannot make brains nor supply conscience.

Therefore, the Forest Service proposes also to serve the people by the intelligent and purposeful use of the law and every lawful means at its command for the public good.

And for that intention it makes no apology.
Fortunately for the Forest Service, the point of view which it worked out for itself under the pressure of its responsibilities was found to be that of the Supreme Court.

In the case of the U.S.vs.

Macdaniel (7 Pet., 13-14), involving the administrative powers of the head of a Department, the Supreme Court of the United States said: "He is limited in the exercise of his powers by the law; but it does not follow that he must show statutory provision for everything he does.