The wealth and prosperity of the country are only the comeliness of the body, the fullness of the flesh and fat; but the spirit is independent of them; it requires only muscle, bone and nerve for the true exercise of its functions. We cannot lose our liberty, because we cannot cease to think.

The Collected Works of Sir Humphry Davy, Bart....: Memoirs of the life of Sir Humphry Davy, by his brother, John Davy (ed. 1839)