An expert is one who knows more and more about less and less. – Nicholas Murray Butler

I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me. – Isaac Newton (1642–1727), spoken the evening before his death

Nature has placed man under the government of two sovereign masters, pain and pleasure. – Jeremy Bentham, Principles of Morals and Legislation, 1789

Society is doing a great deal for the workingman, for the lower classes; but it seems to me, sometimes, as if it formed associations to obtain for them toys, and then formed other associations to teach them to play with them. – John B. Gough