Louis Brandeis, United States Willoughby v. Howard…
“ But the fact that the freedom of choice of the fiduciary is limited by statute does not relieve him of the duty of exercising care and prudence within the field left to his discretion. As he may not shut his eyes to the fact that a so-called legal investment is no longer sound, he may not disregard the fact that a depository proper when designated is no longer safe. ”
