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

Nothing cools so fast as undue enthusiasm. Water that has boiled freezes sooner than any other.

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

We despair of changing the habits of men, still we would alter institutions, the habits of millions of men.

Truth is better disengaged from error than torn from it.

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.

A calculating engine is one of the most intricate forms of mechanism, a telegraph key one of the simplest. But compare their value.