The very purpose of a Bill of Rights was to withdraw certain subjects from the vicissitudes of political controversy, to place them beyond the reach … - Robert H. Jackson

[T]he effect of the religious freedom Amendment to our Constitution was to take every form of propagation of religion out of the realm of things which could directly or indirectly be made public business, and thereby be supported in whole or in part at taxpayers' expense. That is a difference which the Constitution sets up between religion and almost every other subject matter of legislation, a difference which goes to the very root of religious freedom[...] This freedom was first in the Bill of Rights because it was first in the forefathers' minds; it was set forth in absolute terms, and its strength is its rigidity. It was intended not only to keep the states' hands out of religion, but to keep religion's hands off the state, and, above all, to keep bitter religious controversy out of public life by denying to every denomination any advantage from getting control of public policy or the public purse.

A Government to perform even a minimum of service to its people, must take steps to suppress avarice, to strike down privately built-up schemes of economic exploitation or oppression, to uproot privilege, and to assure justice and economic opportunity to the masses.

When the Court moved to Washington in 1800, it was provided with no books, which probably accounts for the high quality of early opinions.