For nature by the same cause, provided it remain in the same condition, always produces the same effect, so that either coming-to-be or passing-away will always result.
My parents were not scientists. They knew almost nothing about science. But in introducing me simultaneously to skepticism and to wonder, they taught me the two uneasily cohabiting modes of thought that are central to the scientific method.
You can get into a habit of thought in which you enjoy making fun of all those other people who don't see things as clearly as you do. We have to guard carefully against it.
Poetry is not the proper antithesis to prose, but to science. Poetry is opposed to science, and prose to meter. The proper and immediate object of science is the acquirement, or communication of truth; the proper and immediate object of poetry is the communication of immediate pleasure.
RAILROAD, n. The chief of many mechanical devices enabling us to get away from where we are to where we are no better off. For this purpose the railroad is held in highest favor by the optimist, for it permits him to make the transit with great expedition.
We must not overlook the role that extremists play. They are the gadflies that keep society from being too complacent or self-satisfied; they are, if sound, the spearhead of progress. If they are fundamentally wrong, free discussion will in time put an end to them.
DIGESTION, n. The conversion of victuals into virtues. When the process is imperfect, vices are evolved instead - a circumstance from which that wicked writer, Dr. Jeremiah Blenn, infers that the ladies are the greater sufferers from dyspepsia.
The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what's true.
Marxism: The theory that all the important things in history are rooted in an economic motive, that history is a science, a science of the search for food.
Man carries the world in his head, the whole astronomy and chemistry suspended in a thought. Because the history of nature is charactered in his brain, therefore he is the prophet and discoverer of her secrets. Every known fact in natural science was divined by the presentiment of somebody, before it was actually verified.
Let us make education brave and preventive. Politics is an afterwork, a poor patching. We are always a little late... We shall one day learn to supercede politics by education... We must begin higher up, namely in Education.