Boundaries which mark off one field of science from another are purely artificial, are set up only for temporary convenience. Let chemists and physicists dig deep enough, and they reach common ground.

Some young folks have wind-fall minds, prematurely detached from the tree of knowledge for a life-long sourness and pettiness.

Error held as truth has much the effect of truth. In politics and religion this fact upsets many confident predictions.

No gun is perfectly true. So the marksman, that he may hit the bull's-eye, points elsewhere.

A superstition is a premature explanation that overstays its time.

Educated folk keep to one another's company too much, leaving other people much like milk skimmed of its cream.

Ten builders rear an arch, each in turn lifting it higher; but it is the tenth man, who drops in the keystone, who hears our huzzas.