Famous quotes containing the words belief and/or concept:
“Doubt is an uneasy and dissatisfied state from which we struggle to free ourselves and pass into the state of belief; while the latter is a calm and satisfactory state which we do not wish to avoid, or to change to a belief in anything else.”
—Charles Sanders Peirce (1839–1914)
“Revolution as an ideal concept always preserves the essential content of the original thought: sudden and lasting betterment.”
—Johan Huizinga (1872–1945)